RBBN / Ribbon Communications Inc. - تصريحات هيئة الأوراق المالية والبورصات، التقرير السنوي، بيان الوكيل

شركة الشريط للاتصالات
US ˙ NasdaqGS ˙ US7625441040

الإحصائيات الأساسية
LEI 549300L1E8Z8RL7CUL52
CIK 1708055
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Ribbon Communications Inc.
SEC Filings (Chronological Order)
توفر هذه الصفحة قائمة كاملة ومرتبة ترتيبًا زمنيًا لتصريحات هيئة الأوراق المالية والبورصات، باستثناء تصريحات الملكية التي نقدمها في مكان آخر.
August 29, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 August 29, 2025 Date of Report (Date of earliest event reported) RIBBON COMMUNICATI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 August 29, 2025 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commissi

July 24, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001

July 23, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 July 23, 2025 Date of Report (Date of earliest event reported) RIBBON COMMUNICATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 July 23, 2025 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission

July 23, 2025 EX-99.1

Ribbon Communications Inc. Reports Second Quarter 2025 Financial Results Record Second Quarter Revenue Up 15% Year Over Year Profitability at High End of Guidance Robust Growth in Service Provider and Enterprise Markets

Exhibit 99.1 Ribbon Communications Inc. Reports Second Quarter 2025 Financial Results Record Second Quarter Revenue Up 15% Year Over Year Profitability at High End of Guidance Robust Growth in Service Provider and Enterprise Markets PLANO, Texas – Ribbon Communications Inc. (Nasdaq: RBBN), a leading supplier of real-time communications technology and IP optical networking solutions, today announce

July 2, 2025 EX-FILING FEES

Filing Fee Table.

Exhibit 107.1 Calculation of Filing Fee Tables Form S-8 (Form Type) Ribbon Communications Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Newly Registered Securities 1

July 2, 2025 S-8

As filed with the Securities and Exchange Commission on July 2, 2025

As filed with the Securities and Exchange Commission on July 2, 2025 Registration No.

May 30, 2025 EX-10.3

Form of Restricted Stock Unit Award Agreement (Performance-Based Vesting) for Awards Granted under the 2025 Incentive Award Plan.

  Exhibit 10.3   Ribbon Communications Inc. 2025 Incentive Award Plan   Restricted Stock Unit Award Agreement (Performance-Based Vesting)   THIS RESTRICTED STOCK UNIT AWARD AGREEMENT (the “Agreement”), is made effective as of the date set forth in the table immediately below  (the “Grant Date”), between Ribbon Communications Inc., a Delaware corporation (the “Company”), and the participant named i

May 30, 2025 EX-3.1

Certificate of Amendment of the Restated Certificate of Incorporation of the Registrant (incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K, filed May 30, 2025 with the SEC).

Exhibit 3.1 THIRD CERTIFICATE OF AMENDMENT OF THE RESTATED CERTIFICATE OF INCORPORATION OF RIBBON COMMUNICATIONS INC. (Pursuant to Section 242 of the General Corporation Law of the State of Delaware) Ribbon Communications Inc., a Delaware corporation (hereinafter called the “Corporation”), does hereby certify as follows: FIRST: The Board of Directors of the Corporation duly adopted resolutions, pu

May 30, 2025 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) DELAWARE 001-38267 82-1669692 (State or Other Jurisdiction (Commission File Number) (IRS Employer of Incorporation) Identification No.) 6500 Chase Oaks Blvd, Suite 100, Plano, TX 75023 (Address of Principal E

May 30, 2025 EX-10.2

Form of Restricted Stock Unit Award Agreement (Time-Based Vesting) for Awards Granted under the 2025 Incentive Award Plan.

Exhibit 10.2 Ribbon Communications Inc. 2025 Incentive Award Plan Restricted Stock Unit Award Agreement (Time-Based Vesting) THIS RESTRICTED STOCK UNIT AWARD AGREEMENT (the “Agreement”) is made effective as of the date set forth in the table below (the “Grant Date”) between Ribbon Communications Inc., a Delaware corporation (the “Company”), and the participant listed in the table below (the “Parti

May 30, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 28, 2025 RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission

May 30, 2025 EX-1.01

Conflict Minerals Report for the year ended December 31, 2024, as required by Items 1.01 and 1.02 of this Form SD.

Exhibit 1.01 ® RIBBON COMMUNICATIONS INC. CONFLICT MINERALS REPORT 2024 ® PURSUANT TO RULE 13P-1 UNDER THE SECURITIES EXCHANGE ACT OF 1934 Ribbon Communications Inc. Conflict Minerals Report 2024 2024 Summary ................................................................................................................................................3 Introduction ................................

April 30, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 00

April 29, 2025 EX-99.1

Ribbon Communications Inc. Reports First Quarter 2025 Financial Results Projecting Strong 1H25 with 5-8% YoY Revenue Growth Backlog Increased 35% on Growing Service Provider Demand Federal and Enterprise Deal Timing Affected 1Q25 Results but Deliveri

Exhibit 99.1 Ribbon Communications Inc. Reports First Quarter 2025 Financial Results Projecting Strong 1H25 with 5-8% YoY Revenue Growth Backlog Increased 35% on Growing Service Provider Demand Federal and Enterprise Deal Timing Affected 1Q25 Results but Delivering in 2Q PLANO, Texas – Ribbon Communications Inc. (Nasdaq: RBBN), a leading supplier of real-time communications technology and IP optic

April 29, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 29, 2025 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 29, 2025 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commissio

April 14, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 1

April 2, 2025 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 1

February 27, 2025 EX-21.1

Subsidiaries of the Registrant.

EXHIBIT 21.1 RIBBON COMMUNICATIONS INC. SUBSIDIARIES OF THE REGISTRANT Name Jurisdiction of Incorporation Network Equipment Technologies, Inc. Delaware Ribbon Communications Operating Company, Inc. Delaware Ribbon Communications Federal Inc. Delaware Sonus Networks, Inc. Delaware GENBAND Inc. Massachusetts ECI de Argentina S.A. Argentina Ribbon Communications Australia Pty Ltd Australia Ribbon Com

February 27, 2025 EX-4.1

Description of Capital Stock.

EXHIBIT 4.1 DESCRIPTION OF CAPITAL STOCK The following description summarizes certain of the terms of the capital stock of Ribbon Communications, Inc. (the “Company”). This description does not purport to be complete and is qualified in its entirety by reference to our Restated Certificate of Incorporation, as amended (the “Certificate of Incorporation”), and our Amended and Restated By-Laws (the

February 27, 2025 EX-19.1

Ribbon Communications Inc. Insider Trading Policy.

‌EXHIBIT 19.1 RIBBON COMMUNICATIONS INC. AMENDED AND RESTATED INSIDER TRADING POLICY I.GENERAL POLICY It is the policy of Ribbon Communications Inc. (the “Company”) to prohibit the unauthorized disclosure of any nonpublic information and the misuse of Material Nonpublic Information in securities trading. Nonpublic information relating to the Company, including but not limited to Material Nonpublic

February 27, 2025 EX-10.32

Severance Agreement, dated November 2, 2022, between the Registrant and Dan Redington.

‌EXHIBIT 10.32 Severance Agreement THIS SEVERANCE AGREEMENT (the “Severance Agreement” or “Agreement”) is entered into as of November 28, 2022, and effective as of the Start Date (as defined in the Employment Letter), between Ribbon Communications Inc. (“Ribbon”), Ribbon Communications Operating Company, a wholly owned subsidiary of Ribbon Communications Inc., (“RCOC”, and together with Ribbon, th

February 27, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON C

February 27, 2025 EX-10.31

Employment Agreement, dated November 2, 2022, between the Registrant and Dan Redington.

‌EXHIBIT 10.31 Confidential November 2, 2022 Dan Redington Via email: [email protected] Dear Dan, On behalf of Ribbon Communications Inc. (“Ribbon”) and Ribbon Communications Operating Company, Inc. (“RCOC” and Ribbon and RCOC, together with its affiliates who may employ you from time to time, the “Company”), I am pleased to provide you with this written offer of employment (this “Agreement”) as R

February 12, 2025 EX-99.1

Ribbon Communications Inc. Reports Fourth Quarter and Full Year 2024 Financial Results Record Quarterly Sales and Operating Income Revenue Grows 11% YoY with Strong Demand from Service Providers, Enterprise Customers, and U.S. Federal Agencies

Exhibit 99.1 Ribbon Communications Inc. Reports Fourth Quarter and Full Year 2024 Financial Results Record Quarterly Sales and Operating Income Revenue Grows 11% YoY with Strong Demand from Service Providers, Enterprise Customers, and U.S. Federal Agencies February 12, 2025 Conference Call Details: Conference call to discuss the Company’s financial results for the fourth quarter and year ended Dec

February 12, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 February 12, 2025 Date of Report (Date of earliest event reported) RIBBON COMMUNICA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 February 12, 2025 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commis

October 28, 2024 EX-FILING FEES

Filing Fee Table.

Exhibit 107.1 Calculation of Filing Fee Table Form S-8 (Form Type) Ribbon Communications Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, $0.00

October 28, 2024 EX-99.3

Restricted Stock Unit Award Agreement with John Townsend (Stock Price Based-Vesting).

Exhibit 99.3 Ribbon Communications Inc. Restricted Stock Unit Award Agreement (Share Price-Based Vesting – Inducement Grant) THIS RESTRICTED STOCK UNIT AWARD AGREEMENT (the “Agreement”), is made effective as of October 15, 2024 (the “Grant Date”), between Ribbon Communications Inc., a Delaware corporation (the “Company”), and John Townsend (the “Participant”). RECITALS WHEREAS, the Board has deter

October 28, 2024 EX-99.2

Restricted Stock Unit Award Agreement with John Townsend (Financial Performance-Based Vesting).

Exhibit 99.2 Ribbon Communications Inc. Restricted Stock Unit Award Agreement (Performance-Based Vesting) THIS RESTRICTED STOCK UNIT AWARD AGREEMENT (the “Agreement”), is made effective as of the date set forth in the table immediately below (the “Grant Date”), between Ribbon Communications Inc., a Delaware corporation (the “Company”), and the participant named in the table immediately below (the

October 28, 2024 EX-99.1

Restricted Stock Unit Award Agreement with John Townsend (Time-Based Vesting).

Exhibit 99.1 Ribbon Communications Inc. Restricted Stock Unit Award Agreement (Time-Based Vesting) THIS RESTRICTED STOCK UNIT AWARD AGREEMENT (the “Agreement”) is made effective as of the date set forth in the table below (the “Grant Date”) between Ribbon Communications Inc., a Delaware corporation (the “Company”), and the participant listed in the table below (the “Participant”). Participant: Joh

October 28, 2024 S-8

As filed with the Securities and Exchange Commission on October 28, 2024.

As filed with the Securities and Exchange Commission on October 28, 2024. File No. 333-        UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in Its Charter) DELAWARE 82-1669692 (State or Other Jurisdiction of (I.R.S. Employer Incorporation or Or

October 24, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Numbe

October 23, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 23, 2024 Date of Report (Date of earliest event reported) RIBBON COMMUNICAT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 23, 2024 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commiss

October 23, 2024 EX-99.1

Ribbon Communications Inc. Reports Third Quarter 2024 Financial Results Strong Profitability Exceeds Expectations Cloud & Edge Revenue Grew 11% YoY and 16% QoQ

Exhibit 99.1 Ribbon Communications Inc. Reports Third Quarter 2024 Financial Results Strong Profitability Exceeds Expectations Cloud & Edge Revenue Grew 11% YoY and 16% QoQ October 23, 2024 Conference Call Details: Conference call to discuss the Company’s financial results for the third quarter ended September 30, 2024. Date: Wednesday, October 23, 2024 Time: 4:30 p.m. (ET) Dial-In Information: US

October 4, 2024 EX-10.3

Form of Restricted Stock Unit Award Agreement (Performance-Based Vesting) between the Company and John Townsend (incorporated by reference to Exhibit 10.3 to the Registrant’s Current Report on Form 8-K, filed October 4, 2024 with the SEC).

Exhibit 10.3 Ribbon Communications Inc. Restricted Stock Unit Award Agreement (Share Price-Based Vesting – Inducement Grant) THIS RESTRICTED STOCK UNIT AWARD AGREEMENT (the “Agreement”), is made effective as of October 15, 2024 (the “Grant Date”), between Ribbon Communications Inc., a Delaware corporation (the “Company”), and John Townsend (the “Participant”). RECITALS WHEREAS, the Board has deter

October 4, 2024 EX-10.1

Employment Agreement, dated as of October 3, 2024, among Ribbon Communications Inc., Ribbon Communications Operating Company, Inc. and John Townsend (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K, filed October 4, 2024 with the SEC).

Exhibit 10.1 October 3, 2024 John Townsend Via email Dear John, On behalf of Ribbon Communications Inc. (“Ribbon”) and Ribbon Communications Operating Company, Inc. (“RCOC” and Ribbon and RCOC, together with its affiliates who may employ you from time to time, the “Company”), I am pleased to provide you with this written offer of employment (this “Agreement”) Your start date with the Company is Oc

October 4, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 3, 2024 Date of Report (Date of earliest event reported) RIBBON COMMUNICATI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 3, 2024 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commissi

October 4, 2024 EX-10.2

Severance Agreement, dated as of October 3, 2024, among Ribbon Communications Inc., Ribbon Communications Operating Company, Inc. and John Townsend (incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K, filed October 4, 2024 with the SEC).

Exhibit 10.2 Attachment 1 Severance Agreement THIS SEVERANCE AGREEMENT (the “Severance Agreement” or “Agreement”) is entered into as of October 3, 2024, and effective as of the Start Date (as defined in the Employment Letter), between Ribbon Communications Inc. (“Ribbon”), Ribbon Communications Operating Company, a wholly owned subsidiary of Ribbon Communications Inc., (“RCOC”, and together with R

August 13, 2024 EX-99.1

Ribbon CFO Mick Lopez to Retire in 4th Quarter 2024

Exhibit 99.1 Ribbon CFO Mick Lopez to Retire in 4th Quarter 2024 FOR IMMEDIATE RELEASE: August 13, 2024. Plano, TX – Ribbon Communications Inc. (Nasdaq: RBBN), a global provider of real time communications technology and IP optical networking solutions to many of the world’s largest service providers, enterprises, and critical infrastructure operators to modernize and protect their networks, today

August 13, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 August 13, 2024 Date of Report (Date of earliest event reported) RIBBON COMMUNICATI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 August 13, 2024 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commissi

July 29, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMMUNI

July 24, 2024 EX-99.1

Ribbon Communications Inc. Reports Second Quarter 2024 Financial Results Net income increased 21% and Adjusted EBITDA up 65% in 1H 2024 YoY Continued improvement in gross margin and lower operating expenses Expect strong second half based on growth f

Exhibit 99.1 Ribbon Communications Inc. Reports Second Quarter 2024 Financial Results Net income increased 21% and Adjusted EBITDA up 65% in 1H 2024 YoY Continued improvement in gross margin and lower operating expenses Expect strong second half based on growth from U.S. Tier 1, Rural Broadband, Enterprise, and India July 24, 2024 Conference Call Details: Conference call to discuss the Company’s f

July 24, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 July 24, 2024 Date of Report (Date of earliest event reported) RIBBON COMMUNICATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 July 24, 2024 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission

June 24, 2024 EX-10.1

Senior Secured Credit Facilities Credit Agreement, dated June 21, 2024 by and among the Company, as a guarantor, Ribbon Communications Operating Company, Inc., as the borrower, HPS Investment Partners, LLC, as administrative agent, HPS Investment Partners, LLC and Whitehorse Capital Management, LLC, as lenders, joint lead arrangers and joint bookrunners, and the other lenders party thereto.

Exhibit 10.1 Execution Version SENIOR SECURED CREDIT FACILITIES CREDIT AGREEMENT dated as of June 21, 2024, among RIBBON COMMUNICATIONS INC., as a Guarantor, RIBBON COMMUNICATIONS OPERATING COMPANY, INC., as the Borrower, The Several Lenders from Time to Time PartY Hereto, HPS INVESTMENT PARTNERS, LLC as Administrative Agent, and HPS INVESTMENT PARTNERS, LLC and WHITEHORSE CAPITAL MANAGEMENT, LLC,

June 24, 2024 EX-99.1

Ribbon Communications Inc. Announces Closing of New $385 Million Senior Secured Credit Facility Proceeds will be used to repay outstanding debt under current credit facility and to redeem Series A Preferred Stock

Exhibit 99.1 Ribbon Communications Inc. Announces Closing of New $385 Million Senior Secured Credit Facility Proceeds will be used to repay outstanding debt under current credit facility and to redeem Series A Preferred Stock June 21, 2024 Investor Relations +1 (978) 614-8050 [email protected] Media Contact Catherine Berthier +1 (646) 741-1974 [email protected] Plano, TX – Ribbon Communications Inc. (N

June 24, 2024 8-K

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 21, 2024 Ribbon Communications Inc.

June 6, 2024 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 4, 2024 RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission

May 31, 2024 EX-1.01

Conflict Minerals Report for the year ended December 31, 2023, as required by Items 1.01 and 1.02 of this Form SD.

Exhibit 1.01 RIBBON COMMUNICATIONS INC. CONFLICT MINERALS REPORT 2023 PURSUANT TO RULE 13P-1 UNDER THE SECURITIES EXCHANGE ACT OF 1934 Ribbon Communications Inc. Conflict Minerals Report 2023 2 2023 Summary............................................................................................................................................... 3 Introduction ...................................

May 31, 2024 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) DELAWARE 001-38267 82-1669692 (State or Other Jurisdiction (Commission File Number) (IRS Employer of Incorporation) Identification No.) 6500 Chase Oaks Blvd, Suite 100, Plano, TX 75023 (Address of Principal E

May 15, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMMUN

May 13, 2024 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING

Commission File Number: 001-38267 CUSIP Number: 762544104 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

April 24, 2024 EX-99.1

Ribbon Communications Inc. Reports First Quarter 2024 Financial Results Significant profitability improvement with >700 bps increase in Gross Margin Selected by Verizon for multi-year Advanced Voice Network Platform

Exhibit 99.1 Ribbon Communications Inc. Reports First Quarter 2024 Financial Results Significant profitability improvement with >700 bps increase in Gross Margin Selected by Verizon for multi-year Advanced Voice Network Platform April 24, 2024 Conference Call Details: Conference call to discuss the Company’s financial results for the first quarter ended March 31, 2024. Date: Wednesday, April 24, 2

April 24, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 24, 2024 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commissio

April 12, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

March 13, 2024 8-K

Other Events, Shareholder Director Nominations

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 13, 2024 Ribbon Communications Inc.

February 28, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMMUNICATIONS INC. (E

February 28, 2024 EX-97

Ribbon Communications Inc. Clawback Policy.

EXHIBIT 97 RIBBON COMMUNICATIONS INC. CLAWBACK POLICY The Board of Directors (the “Board”) of Ribbon Communications Inc. (the “Company”) has adopted the following Clawback Policy (this “Policy”), effective as of October 2, 2023 (the “Effective Date”). 1.Purpose. The purpose of this Policy is to provide for the recoupment of certain incentive compensation pursuant to Section 954 of the Dodd-Frank W

February 28, 2024 EX-21.1

Subsidiaries of the Registrant.

EXHIBIT 21.1 RIBBON COMMUNICATIONS INC. SUBSIDIARIES OF THE REGISTRANT Name Jurisdiction of Incorporation Network Equipment Technologies, Inc. Delaware Ribbon Communications Operating Company, Inc. Delaware Ribbon Communications Federal Inc. Delaware Sonus Networks, Inc. Delaware GENBAND Inc. Massachusetts ECI de Argentina S.A. Argentina Ribbon Communications Australia Pty Ltd Australia Ribbon Com

February 14, 2024 EX-99.1

Ribbon Communications Inc. Reports Fourth Quarter and Full Year 2023 Financial Results Ribbon announces strong 2023 earnings growth IP Optical Networks achieves profitability for the second half of the year with strong demand from Service Providers a

Exhibit 99.1 Ribbon Communications Inc. Reports Fourth Quarter and Full Year 2023 Financial Results Ribbon announces strong 2023 earnings growth IP Optical Networks achieves profitability for the second half of the year with strong demand from Service Providers and Critical Infrastructure February 14, 2024 Conference Call Details: Conference call to discuss the Company’s financial results for the

February 14, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 February 14, 2024 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commis

February 12, 2024 SC 13G/A

RBBN / Ribbon Communications Inc. / Neuberger Berman Group LLC Passive Investment

SC 13G/A 1 formsc13ga-02122024070202.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Ribbon Communications Inc. (Name of Issuer) Common (Title of Class of Securities) 762544104 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to d

February 12, 2024 SC 13G/A

RBBN / Ribbon Communications Inc. / Neuberger Berman Group LLC Passive Investment

SC 13G/A 1 formsc13ga-02122024070207.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 2)* Ribbon Communications Inc. (Name of Issuer) Common (Title of Class of Securities) 762544104 (CUSIP Number) January 31, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to de

October 26, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON CO

October 25, 2023 EX-99.1

Ribbon Communications Inc. Reports Third Quarter 2023 Financial Results Projecting significant improvement in full year company profitability IP Optical Networks Sales up 14% Year to Date – on track to achieve profitability in Fourth Quarter 2023

Exhibit 99.1 Ribbon Communications Inc. Reports Third Quarter 2023 Financial Results Projecting significant improvement in full year company profitability IP Optical Networks Sales up 14% Year to Date – on track to achieve profitability in Fourth Quarter 2023 October 25, 2023 Conference Call Details Conference call to discuss the Company’s financial results for the third quarter ended September 30

October 25, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 25, 2023 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commiss

August 4, 2023 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2023 RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commissi

August 4, 2023 EX-3.1

Certificate of Amendment of the Restated Certificate of Incorporation of the Registrant (incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K, filed August 4, 2023 with the SEC).

Exhibit 3.1 SECOND CERTIFICATE OF AMENDMENT TO THE RESTATED CERTIFICATE OF INCORPORATION OF RIBBON COMMUNICATIONS INC. Pursuant to Section 242 of the General Corporation Law of the State of Delaware Ribbon Communications Inc., a Delaware corporation (hereinafter called the “Corporation”), does hereby certify as follows: FIRST: The Board of Directors of the Corporation duly adopted resolutions, pur

July 27, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMMUNI

July 26, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 July 26, 2023 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission

July 26, 2023 EX-99.1

Ribbon Communications Inc. Reports Second Quarter 2023 Financial Results IP Optical Networks Sales up 24% and Enterprise up 65% Year Over Year

Exhibit 99.1 Ribbon Communications Inc. Reports Second Quarter 2023 Financial Results IP Optical Networks Sales up 24% and Enterprise up 65% Year Over Year July 26, 2023 Conference Call Details Conference call to discuss the Company’s financial results for the second quarter ended June 30, 2023 on July 26, 2023, via the investor section of its website at investors.ribboncommunications.com, where a

June 20, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

June 6, 2023 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

May 31, 2023 EX-1.01

Conflict Minerals Report for the year ended December 31, 2022, as required by Items 1.01 and 1.02 of this Form SD.

Exhibit 1.01 ® RIBBON COMMUNICATIONS INC. CONFLICT MINERALS REPORT 2022 ® PURSUANT TO RULE 13P-1 UNDER THE SECURITIES EXCHANGE ACT OF 1934 Ribbon Communications Inc. Conflict Minerals Report 2022 2022 Summary ................................................................................................................................................3 Introduction ................................

May 31, 2023 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) DELAWARE 001-38267 82-1669692 (State or Other Jurisdiction (Commission File Number) (IRS Employer of Incorporation) Identification No.) 6500 Chase Oaks Blvd, Suite 100, Plano, TX 75023 (Address of Principal E

May 26, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 May 23, 2023 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 May 23, 2023 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission

May 18, 2023 CORRESP

RIBBON COMMUNICATIONS INC. 6500 Chase Oaks Boulevard, Suite 100 Plano, Texas 75023

RIBBON COMMUNICATIONS INC. 6500 Chase Oaks Boulevard, Suite 100 Plano, Texas 75023 May 18, 2023 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, NE Washington, D.C. 20549 Re: Ribbon Communications Inc. Registration Statement on Form S-3 Filed April 4, 2023 File No. 333-271117 Ladies and Gentlemen: On behalf of Ribbon Communications Inc. (the

May 17, 2023 S-3/A

As filed with the Securities and Exchange Commission on May 17, 2023

As filed with the Securities and Exchange Commission on May 17, 2023 Registration No.

May 9, 2023 CORRESP

RIBBON COMMUNICATIONS INC. 6500 Chase Oaks Boulevard, Suite 100 Plano, Texas 75023

RIBBON COMMUNICATIONS INC. 6500 Chase Oaks Boulevard, Suite 100 Plano, Texas 75023 May 9, 2023 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, NE Washington, D.C. 20549 Re: Ribbon Communications Inc. Registration Statement on Form S-3 Filed April 4, 2023 File No. 333-271117 Ladies and Gentlemen: Reference is made to that certain letter, file

May 8, 2023 CORRESP

RIBBON COMMUNICATIONS INC. 6500 Chase Oaks Boulevard, Suite 100 Plano, Texas 75023

CORRESP 1 filename1.htm RIBBON COMMUNICATIONS INC. 6500 Chase Oaks Boulevard, Suite 100 Plano, Texas 75023 May 8, 2023 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, NE Washington, D.C. 20549 Re: Ribbon Communications Inc. Registration Statement on Form S-3 Filed April 4, 2023 File No. 333-271117 Ladies and Gentlemen: On behalf of Ribbon Co

April 28, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMMUN

April 28, 2023 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K/A Amendment No. 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K/A Amendment No. 1 x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMM

April 26, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 26, 2023 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 26, 2023 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commissio

April 26, 2023 EX-99.1

Ribbon Communications Inc. Reports First Quarter 2023 Financial Results 7% Revenue Growth Year Over Year IP Optical Networks Sales up 13% and Cloud & Edge Enterprise up 62% Continued Strong Bookings Momentum

Exhibit 99.1 Ribbon Communications Inc. Reports First Quarter 2023 Financial Results 7% Revenue Growth Year Over Year IP Optical Networks Sales up 13% and Cloud & Edge Enterprise up 62% Continued Strong Bookings Momentum April 26, 2023 Conference Call Details Conference call to discuss the Company’s financial results for the first quarter ended March 31, 2023 on April 26, 2023, via the investor se

April 4, 2023 EX-4.10

Form of Indenture.

Exhibit 4.10 RIBBON COMMUNICATIONS INC. INDENTURE Dated as of [·], 20[·] [·] Trustee TABLE OF CONTENTS Page ARTICLE I. DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 1.1. Definitions. 1 Section 1.2. Other Definitions. 3 Section 1.3. Incorporation by Reference of Trust Indenture Act. 4 Section 1.4. Rules of Construction. 4 ARTICLE II. THE SECURITIES 4 Section 2.1. Issuable in Series. 4 Sectio

April 4, 2023 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Table Form S-3 (Form Type) Ribbon Communications Inc.

April 4, 2023 S-3

Power of Attorney (included on the signature page hereto).

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on April 4, 2023 Registration No.

March 31, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMMUNICATIONS INC. (E

March 31, 2023 EX-21.1

Subsidiaries of the Registrant.

EXHIBIT 21.1 RIBBON COMMUNICATIONS INC. SUBSIDIARIES OF THE REGISTRANT Name Jurisdiction of Incorporation Network Equipment Technologies, Inc. Delaware Ribbon Communications Operating Company, Inc. Delaware Ribbon Communications Federal Inc. Delaware Sonus Networks, Inc. Delaware GENBAND Inc. Massachusetts ECI de Argentina S.A. Argentina Ribbon Communications Australia Pty Ltd Australia Ribbon Com

March 30, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 24, 2023 Ribbon Communication

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 24, 2023 Ribbon Communications Inc.

March 30, 2023 EX-3.1

Certificate of Designation of Series A Preferred Stock (incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K, filed March 30, 2023 with the SEC).

Exhibit 3.1 CERTIFICATE OF DESIGNATION, PREFERENCES AND RIGHTS OF SERIES A PREFERRED STOCK OF RIBBON COMMUNICATIONS INC. On March 30, 2023, the Board of Directors of Ribbon Communications Inc., a Delaware corporation (the “Company”), adopted the following resolution designating and creating, out of the authorized and unissued shares of preferred stock, par value $0.01 per share, of the Company (th

March 30, 2023 EX-99.1

Ribbon Completes $55 Million Preferred Stock Private Placement Financing

Exhibit 99.1 Ribbon Completes $55 Million Preferred Stock Private Placement Financing March 30, 2023 Plano, TX – Ribbon Communications Inc. (“Ribbon”) (Nasdaq: RBBN), a global provider of real time communications technology and IP optical networking solutions to many of the world’s largest service providers, enterprises, and critical infrastructure operators to modernize and protect their networks

March 30, 2023 EX-10.1

, 2023, among Ribbon Communications Operating Company, Inc., as the borrower, the guarantors party thereto, the financial institutions party thereto as lenders, and Citizens Bank, N.A., as administrative agent (incorporated by reference to Exhibit 10.

Exhibit 10.1 Execution Version SIXTH AMENDMENT TO CREDIT AGREEMENT THIS SIXTH AMENDMENT TO CREDIT AGREEMENT (this “Amendment”), dated as of March 24, 2023, is by and among (a) RIBBON COMMUNICATIONS OPERATING COMPANY, INC., a Delaware corporation (the “Borrower”), (b) the Guarantors party hereto, (c) the Lenders (as hereinafter defined) party hereto, and (d) CITIZENS BANK, N.A., as administrative a

March 30, 2023 EX-4.1

Form of Warrant (incorporated by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K, filed March 30, 2023 with the SEC).

Exhibit 4.1 THESE SECURITIES AND THE SECURITIES ISSUABLE UPON EXERCISE OF THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES AND THE SECURITIES ISSUABLE UPON EXERCISE OF THESE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REG

March 30, 2023 EX-10.3

Form of Warrant Agreement, dated March 30, 2023, by and between the Company and American Stock Transfer & Trust Company as Warrant Agent (incorporated by reference to Exhibit 10.3 of the Company’s Current Report on Form 8-K filed on March 30, 2023 with the SEC

Exhibit 10.3 WARRANT AGREEMENT WARRANT AGREEMENT (this “Warrant Agreement”) dated as of March 30, 2023 (the “Issuance Date”) between Ribbon Communications Inc., a Delaware corporation (the “Company”), and American Stock Transfer & Trust Company, LLC, a New York limited liability trust company (the “Warrant Agent”). WHEREAS, the Company is engaged in a private placement of shares of its preferred s

March 30, 2023 EX-10.2

, 2023, by and among Ribbon Communications Inc. and each purchaser identified on the signature pages thereto (incorporated by reference to Exhibit 10.

Exhibit 10.2 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of March 28, 2023, by and among Ribbon Communications Inc., a Delaware corporation (the “Company”), and each purchaser identified on the signature pages hereto (each, including its successors and assigns, a “Purchaser” and collectively, the “Purchasers”). Certain capitalized terms used but

March 27, 2023 EX-99.5

RIBBON COMMUNICATIONS INC. Warrant To Purchase Common Stock

Exhibit 99.5 NEITHER THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED BY THIS WARRANT NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE EXERCISABLE HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECU

March 27, 2023 EX-99.1

Ribbon Announces $55 Million Preferred Stock Private Placement Financing and Amendment to Credit Facility

Exhibit 99.1 Ribbon Announces $55 Million Preferred Stock Private Placement Financing and Amendment to Credit Facility March 24, 2023 Plano, TX – Ribbon Communications Inc. (“Ribbon”) (Nasdaq: RBBN) today announced that it has priced a private placement financing of Series A preferred stock and warrants to purchase shares of common stock to raise gross proceeds of approximately $53.4 million. Ribb

March 27, 2023 EX-99.4

CERTIFICATE OF DESIGNATION, PREFERENCES AND RIGHTS SERIES A PREFERRED STOCK OF RIBBON COMMUNICATIONS INC.

Exhibit 99.4 CERTIFICATE OF DESIGNATION, PREFERENCES AND RIGHTS OF SERIES A PREFERRED STOCK OF RIBBON COMMUNICATIONS INC. On March [●], 2023, the Board of Directors of Ribbon Communications Inc., a Delaware corporation (the “Company”), adopted the following resolution designating and creating, out of the authorized and unissued shares of preferred stock, par value $0.01 per share, of the Company (

March 27, 2023 EX-99.2

Ribbon Investor Presentation March 2023

Exhibit 99.2 Ribbon Investor Presentation March 2023 Ribbon Confidential Information This presentation contains “forward - looking statements” within the meaning of the U.S. Private Securities Litigation Reform Act of 19 95, which are subject to a number of risks and uncertainties. All statements other than statements of historical facts contained in this release, including, without limitation sta

March 27, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 24, 2023 Ribbon Communication

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 24, 2023 Ribbon Communications Inc.

March 27, 2023 EX-99.6

WARRANT AGREEMENT

Exhibit 99.6 WARRANT AGREEMENT WARRANT AGREEMENT (this “Warrant Agreement”) dated as of March [●], 2023 (the “Issuance Date”) between Ribbon Communications Inc., a Delaware corporation (the “Company”), and American Stock Transfer & Trust Company, LLC, a New York limited liability trust company (the “Warrant Agent”). WHEREAS, the Company is engaged in a private placement of shares of its preferred

March 27, 2023 EX-99.3

SECURITIES PURCHASE AGREEMENT

Exhibit 99.3 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of March [●], 2023, by and among Ribbon Communications Inc., a Delaware corporation (the “Company”), and each purchaser identified on the signature pages hereto (each, including its successors and assigns, a “Purchaser” and collectively, the “Purchasers”). Certain capitalized terms used but

March 16, 2023 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING

Commission File Number: 001-38267 CUSIP Number: 762544104 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

March 13, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 March 13, 2023 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 March 13, 2023 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commissio

February 15, 2023 EX-99.1

Ribbon Communications Inc. Reports Fourth Quarter and Full Year 2022 Financial Results Revenue Grew 13% Sequentially to $234 Million for the Fourth Quarter of 2022 IP Optical Sales Up 17% Year Over Year

Exhibit 99.1 Ribbon Communications Inc. Reports Fourth Quarter and Full Year 2022 Financial Results Revenue Grew 13% Sequentially to $234 Million for the Fourth Quarter of 2022 IP Optical Sales Up 17% Year Over Year February 15, 2023 Conference Call Details Conference call to discuss the Company’s financial results for the fourth quarter and year ended December 31, 2022 on February 15, 2023, via t

February 15, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 February 15, 2023 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commis

February 10, 2023 SC 13G

RBBN / Ribbon Communications Inc / Neuberger Berman Group LLC - NONE Passive Investment

SC 13G 1 doc1.htm NONE UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. n/a )* RIBBON COMMUNICATIONS INC (Name of Issuer) Common (Title of Class of Securities) 762544104 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule

January 13, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 January 9, 2023 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commissi

October 28, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON CO

October 26, 2022 EX-99.1

Ribbon Communications Inc. Reports Third Quarter 2022 Financial Results Major increases in IP Optical Networks fundamentals - revenue increases 20% with strong bookings momentum and gross margin up 10 percentage points sequentially

Exhibit 99.1 Ribbon Communications Inc. Reports Third Quarter 2022 Financial Results Major increases in IP Optical Networks fundamentals - revenue increases 20% with strong bookings momentum and gross margin up 10 percentage points sequentially October 26, 2022 Conference Call Details Conference call to discuss the Company’s financial results for the third quarter ended September 30, 2022 on Octob

October 26, 2022 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 26, 2022 Date of Report (Date of earliest event reported) RIBBON COMMUNICAT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 26, 2022 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commiss

September 21, 2022 CORRESP

RIBBON COMMUNICATIONS INC. 6500 Chase Oaks Boulevard, Suite 100 Plano, Texas 75023

RIBBON COMMUNICATIONS INC. 6500 Chase Oaks Boulevard, Suite 100 Plano, Texas 75023 September 21, 2022 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, NE Washington, D.C. 20549 Re: Ribbon Communications Inc. Registration Statement on Form S-3 Filed September 14, 2022 File No. 333-267415 Ladies and Gentlemen: On behalf of Ribbon Communications

September 21, 2022 SC 13D/A

AVCT / American Virtual Cloud Technologies Inc / Ribbon Communications Inc. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* American Virtual Cloud Technologies, Inc. (Name of Issuer) Common Stock, par value $0.0001 (Title of Class of Securities) 030382105 (CUSIP Number) Patrick Macken Executive Vice President and Chief Legal Officer c/o Ribbon Communications Inc. 6500 Chase O

September 14, 2022 S-3

As filed with the Securities and Exchange Commission on September 14, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on September 14, 2022? Registration No.

September 14, 2022 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Table Form S-3 (Form Type) Ribbon Communications Inc.

September 8, 2022 EX-99.1

Ribbon Appoints Scott Mair to its Board of Directors

Exhibit 99.1 Ribbon Appoints Scott Mair to its Board of Directors FOR IMMEDIATE RELEASE: September 8, 2022 Plano, TX ? Ribbon Communications Inc. (Nasdaq: RBBN), a global provider of real time communications technology and IP optical networking solutions to many of the world?s largest service providers, enterprises, and critical infrastructure operators to modernize and protect their networks, tod

September 8, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 September 7, 2022 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commis

August 18, 2022 SC 13D/A

RBBN / Ribbon Communications Inc / Swarth Investments Ltd. - FORM SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 1) RIBBON COMMUNICATIONS INC. (Name of Issuer) COMMON STOCK, PAR VALUE $0.0001 PER SHARE (Title of Class of Securities) 762544104 (CUSIP Number) Suzanne Hart, Nicholas Moss PO Box 634, Frances House, Sir William Place St. Peter Port, Guernsey GY1 3DR +4474

August 16, 2022 EX-99.1

Ribbon Announces $52 Million Private Placement Financing Led by Neuberger Berman, JPMorgan Chase & Co., and Swarth Investments Ltd.

Exhibit 99.1 Ribbon Announces $52 Million Private Placement Financing Led by Neuberger Berman, JPMorgan Chase & Co., and Swarth Investments Ltd. FOR IMMEDIATE RELEASE: August 15, 2022 Plano, TX ? Ribbon Communications Inc. (?Ribbon?) (Nasdaq: RBBN), a global provider of real time communications technology and IP optical networking solutions to many of the world?s largest service providers, enterpr

August 16, 2022 EX-10.2

Second Amended and Restated Registration Rights Agreement, dated as of August 12, 2022, by and among Ribbon Communications Inc. and certain stockholders that are parties thereto (incorporated by reference to Exhibit 10.2 of the Company’s Current Report on Form 8-K filed on August 12, 2022 with the SEC).

? Exhibit 10.2 ? FORM?OF SECOND AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT ? Among ? RIBBON COMMUNICATIONS INC. ? and ? THE STOCKHOLDERS OF RIBBON COMMUNICATIONS INC. THAT ARE PARTIES HERETO ? Dated as of August?12, 2022 ? ? ? ? TABLE OF CONTENTS ? ? ? Page ? ? ? Article?1 GENERAL PROVISIONS 1 Section?1.01. Defined Terms 1 Section?1.02. Interpretation 4 Section?1.03. Effectiveness 5 ? ? ?

August 16, 2022 EX-10.1

Securities Purchase Agreement, dated as of August 12, 2022, by and among Ribbon Communications Inc. and the purchasers listed on the signature pages thereto (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed on August 12, 2022 with the SEC).

Exhibit 10.1 FORM OF SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this ?Agreement?) is dated as of August 12, 2022, by and among Ribbon Communications Inc., a Delaware corporation (the ?Company?), and each purchaser identified on the signature pages hereto (each, including its successors and assigns, a ?Purchaser? and collectively, the ?Purchasers?). RECITALS A.????????????The

August 16, 2022 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Other Events, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 12, 2022 Ribbon Communications Inc.

August 16, 2022 SC 13D/A

RBBN / Ribbon Communications Inc / JPMORGAN CHASE & CO - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5) Ribbon Communications Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 762544104 (CUSIP Number) Michael Lees JPMorgan Chase & Co. 383 Madison Avenue New York, NY 10179 (212) 270-6000 (Name, Address and Telepho

July 29, 2022 S-8

As filed with the Securities and Exchange Commission on July 29, 2022.

As filed with the Securities and Exchange Commission on July 29, 2022. File No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in Its Charter) DELAWARE 82-1669692 (State or Other Jurisdiction of (I.R.S. Employer Incorporation or Organization

July 29, 2022 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Ribbon Communications Inc.

July 28, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMMUNI

July 27, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 July 27, 2022 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission

July 27, 2022 EX-99.1

Ribbon Communications Inc. Reports Second Quarter 2022 Financial Results Revenue grew 19% sequentially to $206 million for the second quarter of 2022 Profitability improves as gross margin increases 600bps to 51%

Exhibit 99.1 Ribbon Communications Inc. Reports Second Quarter 2022 Financial Results Revenue grew 19% sequentially to $206 million for the second quarter of 2022 Profitability improves as gross margin increases 600bps to 51% July 27, 2022 Conference Call Details Conference call to discuss the Company?s financial results for the second quarter ended June 30, 2022 on July 27, 2022, via the investor

July 5, 2022 EX-10.1

Fifth Amendment to Credit Agreement, dated June 30, 2022, among Ribbon Communications Operating Company, Inc., as the borrower, the guarantors party thereto, the financial institutions party thereto as lenders, and Citizens Bank, N.A., as administrative agent (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K, filed July 5, 2022 with the SEC).

Exhibit 10.1 Execution Version FIFTH AMENDMENT TO CREDIT AGREEMENT THIS FIFTH AMENDMENT TO CREDIT AGREEMENT (this ?Amendment?), dated as of June 30, 2022, is by and among (a) RIBBON COMMUNICATIONS OPERATING COMPANY, INC., a Delaware corporation (the ?Borrower?), (b) the Guarantors party hereto, (c) the Lenders (as hereinafter defined) party hereto, and (d) CITIZENS BANK, N.A., as administrative ag

July 5, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 June 30, 2022 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission

May 31, 2022 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) DELAWARE 001-38267 82-1669692 (State or Other Jurisdiction (Commission File Number) (IRS Employer of Incorporation) Identification No.) 6500 Chase Oaks Blvd, Suite 100, Plano, TX 75023 (Address of Principal E

May 31, 2022 EX-1.01

Conflict Minerals Report for the year ended December 31, 2021, as required by Items 1.01 and 1.02 of this Form SD.

Exhibit 1.01 ? RIBBON COMMUNICATIONS INC. CONFLICT MINERALS REPORT PURSUANT TO RULE 13P-1 UNDER THE SECURITIES EXCHANGE ACT OF 1934 ? Ribbon Communications Inc. Conflict Minerals Report 2021 2021 Summary.................................................................................................................................3 Introduction......................................................

May 27, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 May 27, 2022 (May 25, 2022) Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporatio

May 10, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMMUN

April 27, 2022 EX-99.1

Ribbon Communications Inc. Reports First Quarter 2022 Financial Results North American IP Optical Networks Sales Up 190% YOY Projecting Strong Q2 Sequential Total Company Revenue Growth

Exhibit 99.1 Ribbon Communications Inc. Reports First Quarter 2022 Financial Results North American IP Optical Networks Sales Up 190% YOY Projecting Strong Q2 Sequential Total Company Revenue Growth April 27, 2022 Conference Call Details Conference call to discuss the Company?s financial results for the first quarter ended March 31, 2022 on April 27, 2022, via the investor section of its website a

April 27, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 27, 2022 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commissio

April 8, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

April 8, 2022 DEF 14A

Amendment No. 1 to the Ribbon Communications Inc. Amended and Restated 2019 Incentive Award Plan (incorporated by reference to Appendix A to the Registrant’s Definitive Proxy Statement on Schedule 14A filed April 8, 2022 with the Commission).

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ??) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? ? Confidential, for Use of the Commission Only (as permitted by Rul

April 1, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 March 30, 2022 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commissio

March 11, 2022 EX-21.1

Subsidiaries of the Registrant.

EXHIBIT 21.1 RIBBON COMMUNICATIONS INC. SUBSIDIARIES OF THE REGISTRANT Name Jurisdiction of Incorporation Laurel Networks Holdings Corporation Delaware Network Equipment Technologies, Inc. Delaware Ribbon Communications Federal Inc. Delaware Ribbon Communications Operating Company, Inc. Delaware Sonus Networks, Inc. Delaware GENBAND Inc. Massachusetts ECI de Argentina SA Argentina Ribbon Communica

March 11, 2022 EX-10.45

Fourth Amendment to Credit Agreement, dated March 11, 2022, among Ribbon Communications Operating Company, Inc., as the borrower, the guarantors party thereto, the financial institutions party thereto as lenders, and Citizens Bank, N.A., as administrative agent (incorporated by reference to Exhibit 10.45 to the Registrant's Annual Report on Form 10-K, filed March 11, 2022 with the SEC).

Exhibit 10.45 Execution Version FOURTH AMENDMENT TO CREDIT AGREEMENT THIS FOURTH AMENDMENT TO CREDIT AGREEMENT (this ?Amendment?), dated as of March 10, 2022, is by and among (a) RIBBON COMMUNICATIONS OPERATING COMPANY, INC., a Delaware corporation formerly known as Sonus Networks, Inc. (the ?Borrower?), (b) the Guarantors party hereto, (c) the Lenders (as hereinafter defined) party hereto, and (d

March 11, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ☐ TRANSITION REPORT PURSUANT TO SECTI

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMM

February 16, 2022 8-K

Financial Statements and Exhibits, Costs Associated with Exit or Disposal Activities, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 February 16, 2022 (February 14, 2022) Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of In

February 16, 2022 EX-99.1

Ribbon Communications Inc. Reports Fourth Quarter and Full Year 2021 Financial Results Total Revenue Grew 10% Sequentially North American IP Optical Annual Revenue Grew 164% Year Over Year Company Details Investment Strategy to Capture Growth Opportu

Exhibit 99.1 Ribbon Communications Inc. Reports Fourth Quarter and Full Year 2021 Financial Results Total Revenue Grew 10% Sequentially North American IP Optical Annual Revenue Grew 164% Year Over Year Company Details Investment Strategy to Capture Growth Opportunities February 16, 2022 Conference Call Details Conference call to discuss the Company?s financial results for the fourth quarter and ye

January 20, 2022 EX-99.1

Ribbon Communications Reports Preliminary Fourth Quarter 2021 Financial Results Company’s Fourth Quarter and Full Year 2021 Financial Results Conference Call Will Be On February 16, 2022

Exhibit 99.1 Ribbon Communications Reports Preliminary Fourth Quarter 2021 Financial Results Company?s Fourth Quarter and Full Year 2021 Financial Results Conference Call Will Be On February 16, 2022 FOR IMMEDIATE RELEASE: January 20, 2022 Plano, TX ? Ribbon Communications Inc. (Nasdaq: RBBN), a global provider of real-time communications software and IP optical transport solutions to service prov

January 20, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 January 20, 2022 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commiss

January 7, 2022 CORRESP

DRAFT RIBBON COMMUNICATIONS INC. Consolidated Statements of Operations (in thousands, except percentages and per share amounts)

January 7, 2022 VIA EDGAR SUBMISSION Division of Corporation Finance Office of Technology Securities and Exchange Commission 100 F Street, N.

December 29, 2021 CORRESP

December 29, 2021

December 29, 2021 VIA EDGAR SUBMISSION Division of Corporation Finance Office of Technology Securities and Exchange Commission 100 F Street, N.

December 14, 2021 CORRESP

* * * * * * * *

December 14, 2021 VIA EDGAR SUBMISSION Division of Corporation Finance Office of Technology Securities and Exchange Commission 100 F Street, N.

October 28, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON CO

October 27, 2021 EX-99.1

Ribbon Communications Inc. Reports Third Quarter 2021 Financial Results IP Optical Networks new customer wins and strong profitability in Cloud & Edge Global supply chain constraints affected in-quarter revenue

Exhibit 99.1 Ribbon Communications Inc. Reports Third Quarter 2021 Financial Results IP Optical Networks new customer wins and strong profitability in Cloud & Edge Global supply chain constraints affected in-quarter revenue October 27, 2021 Conference Call Details Conference call to discuss the Company?s financial results for the third quarter ended September 30, 2021 on October 27, 2021, via the

October 27, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 27, 2021 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commiss

September 14, 2021 SC 13D/A

AVCT / American Virtual Cloud Technologies Inc / Ribbon Communications Inc. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* American Virtual Cloud Technologies, Inc. (Name of Issuer) Common Stock, par value $0.0001 (Title of Class of Securities) 030382105 (CUSIP Number) Patrick Macken Executive Vice President and Chief Legal Officer c/o Ribbon Communications Inc. 6500 Chase O

July 29, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMMUNI

July 28, 2021 EX-99.1

Ribbon Communications Inc. Reports Second Quarter 2021 Financial Results Revenue grew 10% sequentially to $211 million for the second quarter of 2021, Net income increased to $23 million and Adjusted EBITDA grew 119% sequentially to $43 million

Exhibit 99.1 Ribbon Communications Inc. Reports Second Quarter 2021 Financial Results Revenue grew 10% sequentially to $211 million for the second quarter of 2021, Net income increased to $23 million and Adjusted EBITDA grew 119% sequentially to $43 million July 28, 2021 Conference Call Details Conference call to discuss the Company?s financial results for the second quarter ended June 30, 2021 on

July 28, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 July 28, 2021 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission

June 1, 2021 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 June 1, 2021 (May 27, 2021) Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporatio

June 1, 2021 EX-1.01

Conflict Minerals Report for the year ended December 31, 2020, as required by Items 1.01 and 1.02 of this Form SD.

Exhibit 1.01 CONFLICT MINERALS REPORT For the Year Ended December 31, 2020 Introduction This report for the year ended December 31, 2020 has been prepared by Ribbon Communications Inc. (the ?Company?, ?Ribbon?, ?we,? ?us,? or ?our?) to comply with Rule 13p-1 (the ?Rule?) under the Securities Exchange Act of 1934, as amended. The Rule imposes certain disclosure and reporting obligations on companie

June 1, 2021 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) DELAWARE 001-38267 82-1669692 (State or Other Jurisdiction (Commission File Number) (IRS Employer of Incorporation) Identification No.) 6500 Chase Oaks Blvd, Suite 100, Plano, TX 75023 (Address of Principal E

April 30, 2021 EX-10.5

Severance Agreement, dated May 26, 2020, between the Registrant and Patrick Macken (incorporated by reference to Exhibit 10.5 to the Registrant's Quarterly Report on Form 10-Q, filed April 30, 2021 with the SEC).

Exhibit 10.5 CONFIDENTIAL Severance Agreement THIS SEVERANCE AGREEMENT (the ?Agreement?) is entered into as of May 26, 2020, and effective as of the Start Date (as defined in the Employment Letter), between Ribbon Communications Inc. (?Ribbon?), Sonus Networks, Inc. d/b/a Ribbon Communications Operating Company, Inc. (?RCOC? and together with Ribbon, the ?Company?) and Patrick Macken (?Executive?

April 30, 2021 EX-10.7

Severance Agreement, dated September 7, 2020, between the Registrant and Sam Bucci (incorporated by reference to Exhibit 10.7 to the Registrant's Quarterly Report on Form 10-Q, filed April 30, 2021 with the SEC).

Exhibit 10.7 Severance Agreement THIS SEVERANCE AGREEMENT (the ?Severance Agreement?) is effective as of September 7, 2020 (the ?Effective Date?) between Ribbon Communications Canada ULC (the ?Company?), a wholly owned subsidiary of Ribbon Communications Inc. (?Ribbon?), and Sam Bucci (?you?). 1.Definitions. The following capitalized terms used herein shall have the following meanings: (a)?Annual

April 30, 2021 EX-10.4

Employment Agreement, dated May 26, 2020, between the Registrant and Patrick Macken (incorporated by reference to Exhibit 10.4 to the Registrant's Quarterly Report on Form 10-Q, filed April 30, 2021 with the SEC).

Exhibit 10.4 CONFIDENTIAL May 26, 2020 Patrick Macken Via email Dear Patrick, On behalf of Ribbon Communications Inc. (?Ribbon?) and Sonus Networks, Inc. d/b/a Ribbon Communications Operating Company, Inc. (?RCOC? and Ribbon and RCOC, together with its affiliates who may employ you from time to time, the ?Company?), I am pleased to provide you with this written offer of employment (this ?Agreement

April 30, 2021 EX-10.6

Employment Agreement, dated July 21, 2020, between the Registrant and Sam Bucci (incorporated by reference to Exhibit 10.6 to the Registrant's Quarterly Report on Form 10-Q, filed April 30, 2021 with the SEC).

Exhibit 10.6 July 31, 2020 Sam Bucci Via Email Re: Offer of Employment Dear Sam: On behalf of Ribbon Communications Inc. (?Parent Company?) and Ribbon Communications Canada ULC (?Ribbon Canada? and Parent Company and Ribbon Canada, together with its affiliates who may employ you from time to time, the ?Company?), I am very pleased to extend this offer of employment (this ?Agreement?) as the Parent

April 30, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMMUN

April 28, 2021 EX-99.1

Ribbon Communications Inc. Reports First Quarter 2021 Financial Results Revenue was $193 million for the first quarter of 2021, growing 22% from the first quarter of 2020

Exhibit 99.1 Ribbon Communications Inc. Reports First Quarter 2021 Financial Results Revenue was $193 million for the first quarter of 2021, growing 22% from the first quarter of 2020 April 28, 2021 Conference Call Details Conference call to discuss the Company?s financial results for the first quarter ended March 31, 2021 on April 28, 2021, via the investor section of its website at http://invest

April 28, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 28, 2021 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commissio

April 9, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

April 9, 2021 DEF 14A

- DEF 14A

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.???????? ??) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? ? Confidential, for Use of the Commission Only (as permitte

April 2, 2021 EX-10.1

Employment Letter Agreement, dated March 31, 2021, between the Company and Steven Bruny

Exhibit 10.1 March 31, 2021 By email Steven Bruny [email protected] Dear Steven: On behalf of Ribbon Communications Inc. (?Ribbon?), I am pleased to provide you by this letter details of certain changes to your compensation by Ribbon Communications Operating Company, Inc. (?Company?). (a) Base Salary. Effective March 1, 2021, your base salary (?Base Salary?) will be at the annualized rate of $405,00

April 2, 2021 EX-10.2

Amended and Restated Employment Letter Agreement, dated March 31, 2021, between the Company and Anthony Scarfo

Exhibit 10.2 March 31, 2021 By email Anthony Scarfo [email protected] Re: Amended and Restated Employment Letter Agreement Dear Tony: On behalf of Ribbon Communications Inc. (?Ribbon Communications?), I am pleased to provide you by this letter (the ?Agreement?) an amendment and restatement of your January 18, 2018 letter agreement with Ribbon Communications Operating Company, Inc. (f/k/a Sonus Netw

April 2, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 2, 2021 (March 31, 2021) Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorpora

March 4, 2021 EX-10.1

Third Amendment to Credit Agreement, dated March 3, 2021 among Ribbon Communications Operating Company, Inc., as the borrower, the guarantors party thereto, the financial institutions party thereto as lenders, and Citizens Bank, N.A., as administrative agent.

Exhibit 10.1 THIRD AMENDMENT TO CREDIT AGREEMENT THIS THIRD AMENDMENT TO CREDIT AGREEMENT (this ?Amendment?), dated as of March 3, 2021, is by and among (a) RIBBON COMMUNICATIONS OPERATING COMPANY, INC., a Delaware corporation formerly known as Sonus Networks, Inc. (the ?Borrower?), (b) the Guarantors party hereto, (c) the Existing Lenders (as hereinafter defined) party hereto, (d) the banks and f

March 4, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 March 3, 2021 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission

February 26, 2021 EX-21.1

Subsidiaries of the Registrant.

EXHIBIT 21.1 RIBBON COMMUNICATIONS INC. SUBSIDIARIES OF THE REGISTRANT Name Jurisdiction of Incorporation ECI Telecom Inc. Delaware Edgewater Networks, Inc. Delaware Laurel Networks Holdings Corporation Delaware Network Equipment Technologies, Inc. Delaware Ribbon Communications International Inc. Delaware Ribbon Communications Federal Inc. Delaware Ribbon Communications Operating Company, Inc. De

February 26, 2021 10-K

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMM

February 26, 2021 EX-10.23

Second Amendment to Credit Agreement and Consent, dated December 1, 2020, among Ribbon Communications Operating Company, Inc., as the borrower and Citizens Bank, N.A., as administrative agent (incorporated by reference to Exhibit 10.23 to the Registrant's Annual Report on Form 10-K, filed February 26, 2021 with the SEC).

Exhibit 10.23 SECOND AMENDMENT TO CREDIT AGREEMENT AND CONSENT THIS SECOND AMENDMENT TO CREDIT AGREEMENT AND CONSENT (this ?Amendment?), dated as of December 1, 2020, is by and among RIBBON COMMUNICATIONS OPERATING COMPANY, INC., a Delaware corporation formerly known as Sonus Networks, Inc. (the ?Borrower?), the other Loan Parties, the Lenders (as hereinafter defined) party hereto (constituting, f

February 17, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 February 17, 2021 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commis

February 17, 2021 EX-99.1

Ribbon Communications Inc. Reports Fourth Quarter and Full Year 2020 Financial Results Second Consecutive Quarter of Positive Net Income and Record Adjusted EBITDA Revenue Grew 6% Sequentially

Exhibit 99.1 Ribbon Communications Inc. Reports Fourth Quarter and Full Year 2020 Financial Results Second Consecutive Quarter of Positive Net Income and Record Adjusted EBITDA Revenue Grew 6% Sequentially February 17, 2021 Conference Call Details Conference call to discuss the Company?s financial results for the fourth quarter and year ended December 31, 2020 on February 17, 2021, via the investo

January 25, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 January 25, 2021 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commiss

January 25, 2021 EX-99.1

Ribbon Communications Reports Preliminary Fourth Quarter 2020 Financial Results; Meets and Exceeds Prior Guidance Company’s Fourth Quarter and Full Year 2020 Financial Results Conference Call Will Be On February 17, 2021

Exhibit 99.1 Ribbon Communications Reports Preliminary Fourth Quarter 2020 Financial Results; Meets and Exceeds Prior Guidance Company’s Fourth Quarter and Full Year 2020 Financial Results Conference Call Will Be On February 17, 2021 January 25, 2021 WESTFORD, Mass. - Ribbon Communications Inc. (Nasdaq: RBBN), a global provider of real time communications software and network solutions to service

December 11, 2020 SC 13D

AVCT / American Virtual Cloud Technologies, Inc. / Ribbon Communications Inc. - SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* American Virtual Cloud Technologies, Inc. (Name of Issuer) Common Stock, par value $0.0001 (Title of Class of Securities) 030382105 (CUSIP Number) Patrick Macken Executive Vice President and Chief Legal Officer c/o Ribbon Communications Inc. 4 Technology

December 7, 2020 EX-10.1

Amended and Restated Voting Agreement, dated December 1, 2020, by and among Ribbon Communications Operating Company, Inc., Ribbon Communications International Limited and Pensare Sponsor Group, LLC (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K, filed December 7, 2020 with the SEC).

Exhibit 10.1 EXECUTION VERSION AMENDED AND RESTATED VOTING AGREEMENT This Amended and restated voting Agreement (this “Agreement”) is made and entered into as of December 1, 2020, by and among Ribbon Communications Operating Company, Inc., a Delaware corporation (“RCOCI”), Ribbon Communications International Limited, an Ireland company (“RCIL”, and together with RCOCI, each a “Seller” and collecti

December 7, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 December 1, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commiss

December 7, 2020 EX-2.1

Amended and Restated Purchase Agreement, dated December 1, 2020, among Ribbon Communications Inc., Ribbon Communications Operating Company, Inc., Ribbon Communications International Limited and American Virtual Cloud Technologies, Inc. (incorporated by reference to Exhibit 2.1 to the Registrant's Current Report on Form 8-K, filed December 7, 2020 with the SEC).

Exhibit 2.1 Execution Version AMENDED AND RESTATED PURCHASE AGREEMENT among RIBBON COMMUNICATIONS INC., RIBBON COMMUNICATIONS OPERATING COMPANY, INC., RIBBON COMMUNICATIONS INTERNATIONAL LIMITED and AMERICAN VIRTUAL CLOUD TECHNOLOGIES, INC. dated as of December 1, 2020 TABLE OF CONTENTS ARTICLE I DEFINITIONS 2 ARTICLE II PURCHASE AND SALE 17 Section 2.01. Purchase and Sale of the Purchased Interes

December 7, 2020 EX-10.2

Amended and Restated Voting Agreement, dated December 1, 2020, by and among Ribbon Communications Inc., Ribbon Communications Operating Company, Inc., Ribbon Communications International Limited and Stratos Management Systems Holdings, LLC (incorporated by reference to Exhibit 10.2 to the Registrant's Current Report on Form 8-K, filed December 7, 2020 with the SEC).

Exhibit 10.2 EXECUTION VERSION AMENDED AND RESTATED VOTING AGREEMENT This Amended and restated voting Agreement (this “Agreement”) is made and entered into as of December 1, 2020, by and among Ribbon Communications Operating Company, Inc., a Delaware corporation (“RCOCI”), Ribbon Communications International Limited, an Ireland company (“RCIL”, and together with RCOCI, each a “Seller” and collecti

December 7, 2020 EX-10.3

Investor Rights Agreement, dated December 1, 2020, by and among Ribbon Communications Inc., Pensare Sponsor Group, LLC and Stratos Management Systems Holdings, LLC.

Exhibit 10.3 Execution Version INVESTOR RIGHTS AGREEMENT THIS INVESTOR RIGHTS AGREEMENT (this “Agreement”), dated as of December 1, 2020, is made and entered into by and among American Virtual Cloud Technologies, Inc., a Delaware corporation (the “Company”),the undersigned party listed under the heading “Holder” on the signature page hereto (and, together with any person or entity who hereafter be

October 30, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON CO

October 30, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 27, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commiss

October 30, 2020 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - FORM 8K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 26, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Inc

October 29, 2020 EX-99.1

Ribbon Communications Inc. Reports Third Quarter 2020 Financial Results Positive Net Income and Record Adjusted EBITDA Revenue Grew 10% Sequentially

Exhibit 99.1 Ribbon Communications Inc. Reports Third Quarter 2020 Financial Results Positive Net Income and Record Adjusted EBITDA Revenue Grew 10% Sequentially October 29, 2020 Conference Call Details Conference call to discuss the Company’s financial results for the third quarter ended September 30, 2020 on October 29, 2020, via the investor section of its website at http://investors.ribboncomm

October 29, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 29, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commiss

August 24, 2020 EX-10.1

First Amendment to Credit Agreement, dated August 18, 2020, among Ribbon Communications Operating Company, Inc., as the borrower and Citizens Bank, N.A., as administrative agent (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K, filed August 24, 2020 with the SEC).

Exhibit 10.1 FIRST AMENDMENT TO CREDIT AGREEMENT THIS FIRST AMENDMENT TO CREDIT AGREEMENT (this “Amendment”), dated as of August 18, 2020, is by and among RIBBON COMMUNICATIONS OPERATING COMPANY, INC., a Delaware corporation formerly known as Sonus Networks, Inc. (the “Borrower”), the Lenders (as hereinafter defined) party hereto and CITIZENS BANK, N.A., as administrative agent for the Lenders her

August 24, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 August 18, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commissi

August 7, 2020 EX-10.1

Voting Agreement, dated August 5, 2020, by and among Ribbon Communications Inc., Ribbon Communications Operating Company, Inc., Ribbon Communications International Limited and Pensare Sponsor Group, LLC

Exhibit 10.1 Execution Version Voting Agreement This Voting Agreement (this “Agreement”) is made and entered into as of August 5, 2020, by and among Ribbon Communications Operating Company, Inc., a Delaware corporation (“RCOCI”), Ribbon Communications International Limited, an Ireland company (“RCIL”, and together with RCOCI, each a “Seller” and collectively the “Sellers”), Ribbon Communications I

August 7, 2020 EX-99.1

AVCtechnologies Announces Agreement to Buy Ribbon’s Kandy Communications Business Kandy acquisition adds industry-leading proprietary, multi-tenant cloud communications platform Combination creates a comprehensive suite of Unified Communications as a

Exhibit 99.1 AVCtechnologies Announces Agreement to Buy Ribbon’s Kandy Communications Business Kandy acquisition adds industry-leading proprietary, multi-tenant cloud communications platform Combination creates a comprehensive suite of Unified Communications as a Service (UCaaS), Communications Platform as a Service (CPaaS), and Contact Center as a Service (CCaaS) capabilities FOR IMMEDIATE RELEAS

August 7, 2020 EX-10.2

Voting Agreement, dated August 5, 2020, by and among Ribbon Communications Inc., Ribbon Communications Operating Company, Inc., Ribbon Communications International Limited and Stratos Management Systems Holdings, LLC

Exhibit 10.2 Execution Version Voting Agreement This Voting Agreement (this “Agreement”) is made and entered into as of August 5, 2020, by and among Ribbon Communications Operating Company, Inc., a Delaware corporation (“RCOCI”), Ribbon Communications International Limited, an Ireland company (“RCIL”, and together with RCOCI, each a “Seller” and collectively the “Sellers”), Ribbon Communications I

August 7, 2020 EX-2.1

Purchase Agreement, dated August 5, 2020, by and among Ribbon Communications Inc., Ribbon Communications Operating Company, Inc., Ribbon Communications International Limited and American Virtual Cloud Technologies, Inc.

Exhibit 2.1 Execution Version PURCHASE AGREEMENT among RIBBON COMMUNICATIONS INC., RIBBON COMMUNICATIONS OPERATING COMPANY, INC., RIBBON COMMUNICATIONS INTERNATIONAL LIMITED and AMERICAN VIRTUAL CLOUD TECHNOLOGIES, INC. dated as of August 5, 2020 TABLE OF CONTENTS ARTICLE I DEFINITIONS 1 ARTICLE II PURCHASE AND SALE 16 Section 2.01. Purchase and Sale of the Purchased Interests 16 Section 2.02. Pur

August 7, 2020 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 August 5, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commissio

August 6, 2020 EX-10.4

Form of Consent to Temporary Wage Reduction entered into with Executive Officers (incorporated by reference to Exhibit 10.4 to the Registrant's Quarterly Report on Form 10-Q, filed August 6, 2020 with the SEC).

Exhibit 10.4 Form of Consent to Temporary Wage Reduction , 2020 As of the date hereof, I voluntarily consent to Ribbon Communications Inc.’s and its subsidiaries’ (collectively, “Ribbon” or the “Company”) reduction of my current base salary in an amount equal to 20%1 beginning in the first payroll cycle following May 15, 2020 (the “Temporary Wage Reduction”). I understand and agree that this Tempo

August 6, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMMUNI

August 5, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 August 5, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commissio

August 5, 2020 EX-99.1

Ribbon Communications Inc. Reports Second Quarter 2020 Financial Results Revenue for Q2’20 grew to $210 million Ribbon Announces Strategic Sale of Kandy Communications Platform Software Product Sales grew 50% in Q2’20 compared to Q2’19

Exhibit 99.1 Ribbon Communications Inc. Reports Second Quarter 2020 Financial Results Revenue for Q2’20 grew to $210 million Ribbon Announces Strategic Sale of Kandy Communications Platform Software Product Sales grew 50% in Q2’20 compared to Q2’19 August 5, 2020 Conference Call Details Conference call to discuss its financial results for the second quarter ended June 30, 2020 on August 5, 2020, v

June 23, 2020 EX-10.1

Employment Agreement between the Registrant and Miguel Lopez, dated June 22, 2020 (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K, filed June 23, 2020 with the SEC).

Exhibit 10.1 June 22, 2020 Miguel Lopez Via email Dear Miguel, On behalf of Ribbon Communications Inc. (“Ribbon”) and Ribbon Communications Operating Company, Inc. (“RCOC” and Ribbon and RCOC, together with its affiliates who may employ you from time to time, the “Company”), I am pleased to provide you with this written offer of employment (this “Agreement”) as Ribbon’s Chief Finance Officer, effe

June 23, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 June 18, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission

June 23, 2020 EX-10.2

Severance Agreement between the Registrant and Miguel Lopez, dated June 22, 2020 (incorporated by reference to Exhibit 10.2 to the Registrant's Current Report on Form 8-K, filed June 23, 2020 with the SEC).

Exhibit 10.2 Attachment 1 Severance Agreement THIS SEVERANCE AGREEMENT (the “Severance Agreement” or “Agreement”) is entered into as of June 22, 2020, and effective as of the Start Date (as defined in the Employment Letter), between Ribbon Communications Inc. (“Ribbon”), Ribbon Communications Operating Company, a wholly owned subsidiary of Ribbon Communications Inc., (“RCOC”, and together with Rib

June 3, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 June 2, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission

June 2, 2020 EX-99.1

Ribbon Communications Inc. Amended and Restated 2019 Incentive Award Plan (incorporated by reference to Exhibit 99.1 to the Registrant's Form S-8 Registration Statement, filed June 2, 2020 with the SEC).

Exhibit 99.1 RIBBON COMMUNICATIONS INC. AMENDED AND RESTATED 2019 INCENTIVE AWARD PLAN 1. Purpose. The purpose of this Ribbon Communications Inc. Amended and Restated 2019 Incentive Award Plan (as may be further amended from time to time, the "Plan") is to advance the interests of the stockholders of Ribbon Communications Inc., a Delaware corporation (the "Company"), by enhancing the Company's abi

June 2, 2020 S-8

- FORM S-8

As filed with the United States Securities and Exchange Commission on June 2, 2020 Registration No.

May 29, 2020 SD

- FORM SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) DELAWARE 001-38267 82-1669692 (State or Other Jurisdiction (Commission File Number) (IRS Employer of Incorporation) Identification No.) 4 TECHNOLOGY PARK DRIVE, WESTFORD, MASSACHUSETTS 01886 (Address of Princ

May 29, 2020 EX-1.01

Conflict Minerals Report for the year ended December 31, 2019, as required by Items 1.01 and 1.02 of this Form SD.

Exhibit 1.01 CONFLICT MINERALS REPORT For the Year Ended December 31, 2019 Introduction This report for the year ended December 31, 2019 has been prepared by Ribbon Communications Inc. (the “Company”, “Ribbon”, “we,” “us,” or “our”) to comply with Rule 13p-1 (the “Rule”) under the Securities Exchange Act of 1934, as amended. The Rule imposes certain disclosure and reporting obligations on companie

May 11, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 May 6, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission F

May 8, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMMUN

May 8, 2020 EX-10.4

EX-10.4

rbbnex10433120

May 8, 2020 EX-10.5

EX-10.5

rbbnex10533120

May 6, 2020 EX-99.1

Ribbon Communications Inc. Releases First Quarter Financial Results Revenue was $158 million for the first quarter of 2020 First Quarter 2020 software sales grew 62 percent compared with first Quarter 2019 Completed the merger with ECI Telecom during

Exhibit 99.1 Ribbon Communications Inc. Releases First Quarter Financial Results Revenue was $158 million for the first quarter of 2020 First Quarter 2020 software sales grew 62 percent compared with first Quarter 2019 Completed the merger with ECI Telecom during March 2020 May 6, 2020 Conference Call Details Conference call to discuss its financial results for the first quarter ended March 31, 20

May 6, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 May 6, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission F

May 5, 2020 SC 13D/A

RBBN / Ribbon Communications Inc. / JP Morgan Chase & Co - AMENDMENT NO. 4 TO SC 13D Activist Investment

Amendment No. 4 to SC 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4) Ribbon Communications Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 762544104 (CUSIP Number) Michael Lees JPMorgan Chase & Co. 383 Madison Avenue New York, NY 10179 (212) 270-6000

April 29, 2020 DEF 14A

- DEF 14A

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 13, 2020 EX-99.1

3

Exhibit 99.1 ECI Telecom Group Ltd. Consolidated Financial Statements December 31, 2019 ECI Telecom Group Ltd. Consolidated Statements of Financial Position as at December 31 2019 Contents Page Auditors’ Report 2 Consolidated Financial Statements Consolidated Balance Sheets 3 Consolidated Statements of Operations 5 Consolidated Statements of Comprehensive Loss 6 Consolidated Statements of Changes

April 13, 2020 8-K/A

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 March 3, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorp

April 13, 2020 EX-99.2

RIBBON COMMUNICATIONS INC. UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS

Exhibit 99.2 RIBBON COMMUNICATIONS INC. UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS The unaudited pro forma condensed combined financial statements combine the historical financial results of Ribbon Communications Inc. (“Ribbon”) and ECI Telecom Group Ltd. (“ECI”) to illustrate the effect of the merger of a wholly-owned subsidiary of Ribbon with and into ECI, with ECI surviving suc

March 16, 2020 EX-99.2

Restricted Stock Unit Award Agreement with Bruce McClelland (Performance Vesting).

Exhibit 99.2 Restricted Stock Unit Award Agreement (Performance-Based Vesting) THIS RESTRICTED STOCK UNIT AWARD AGREEMENT (the “Agreement”), is entered into and made effective as of March 16, 2020 (the “Grant Date”), between Ribbon Communications Inc., a Delaware corporation (the “Company”), and Bruce McClelland (the “Participant”). RECITALS WHEREAS, the Board has determined that it is in the best

March 16, 2020 EX-99.1

Restricted Stock Unit Award Agreement with Bruce McClelland (Time Vesting)

Exhibit 99.1 Restricted Stock Unit Award Agreement (Time-Based Vesting) THIS RESTRICTED STOCK UNIT AWARD AGREEMENT (the “Agreement”), is entered into and made effective as of March 16, 2020 (the “Grant Date”), between Ribbon Communications Inc., a Delaware corporation (the “Company”), and Bruce McClelland (the “Participant”). RECITALS WHEREAS, the Board has determined that it is in the best intere

March 16, 2020 S-8

RBBN / Ribbon Communications Inc. S-8 - - FORM S-8

As filed with the United States Securities and Exchange Commission on March 16, 2020 Registration No.

March 13, 2020 SC 13D

RBBN / Ribbon Communications Inc. / ECI Holding (Hungary) Kft. - FORM SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 RIBBON COMMUNICATIONS INC. (Name of Issuer) COMMON STOCK, PAR VALUE $0.0001 PER SHARE (Title of Class of Securities) 762544104 (CUSIP Number) Suzanne Hart, Marta Kiri, Attila Urbanovics Dohany utca 12 Budapest H-1074 Hungary +36 1 328 6828 (Name, Address and Telephone Numb

March 13, 2020 EX-99.1

JOINT FILING AGREEMENT

Exhibit 1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the common stock, par value $0.

March 5, 2020 SC 13D/A

RBBN / Ribbon Communications Inc. / JP Morgan Chase & Co - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* Ribbon Communications Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 762544104 (CUSIP Number) Michael Lees JPMorgan Chase & Co. 383 Madison Avenue New York, NY 10179 (212) 270-6000 (Name, Address a

March 4, 2020 EX-10.1

Senior Secured Credit Facilities Credit Agreement, dated March 3, 2020, among the Company, as guarantor, Ribbon Communications Operating Company, Inc., as the borrower, Citizens Bank, N.A., as administrative agent, a lender, issuing lender, swingline lender, joint lead arrangers and bookrunner, Santander Bank, National Association, as a lender, joint lead arranger and bookrunner, and the other lenders party thereto (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K, filed March 4, 2020 with the SEC).

Exhibit 10.1 Execution Version SENIOR SECURED CREDIT FACILITIES CREDIT AGREEMENT dated as of March 3, 2020, among RIBBON COMMUNICATIONS INC., as a Guarantor, RIBBON COMMUNICATIONS OPERATING COMPANY, INC., as the Borrower, The Several Lenders from Time to Time PartY Hereto, CITIZENS BANK, N.A. as Administrative Agent, Issuing Lender and Swingline Lender, and CITIZENS BANK, N.A. and Santander Bank,

March 4, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 March 3, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission

March 3, 2020 EX-10.2

First Amended and Restated Registration Rights Agreement, dated as of March 3, 2020, by and among Ribbon Communications Inc., JPMC Heritage Parent LLC, Heritage PE (OEP) III, L.P. and ECI Holding (Hungary) Kft (incorporated by reference to Exhibit 10.2 of the Company’s Current Report on Form 8-K filed on March 3, 2020 with the SEC).

Exhibit 10.2 Execution Version FIRST AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT among RIBBON COMMUNICATIONS INC. and THE STOCKHOLDERS OF RIBBON COMMUNICATIONS INC. THAT ARE PARTIES HERETO Dated as of March 3, 2020 TABLE OF CONTENTS Page Article 1 General Provisions Section 1.01. Defined Terms 1 Section 1.02. Interpretation 4 Section 1.03. Effectiveness 5 Article 2 Registration Rights Secti

March 3, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 March 3, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commission

March 3, 2020 EX-99.1

Ribbon Communications Inc. Completes Merger with ECI Telecom Group Ltd.

Exhibit 99.1 Ribbon Communications Inc. Completes Merger with ECI Telecom Group Ltd. WESTFORD, Mass. March 3, 2020 – Ribbon Communications Inc. (Nasdaq: RBBN), a global software leader in secure and intelligent cloud communications, has completed its previously announced acquisition of ECI Telecom Group Ltd. ("ECI"), a global provider of end-to-end packet-optical transport and SDN/NFV solutions fo

March 3, 2020 EX-10.1

First Amended and Restated Stockholders Agreement, dated as of March 3, 2020, by and among the Registrant, JPMC Heritage Parent LLC, Heritage PE (OEP)Heritage Parent LLC, Heritage PE (OEP) III, L.P. and ECI Holding (Hungary) Kft (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K, filed March 3, 2020 with the SEC).

Exhibit 10.1 Execution Version FIRST AMENDED AND RESTATED STOCKHOLDERS AGREEMENT BY AND AMONG RIBBON COMMUNICATIONS INC. AND THE STOCKHOLDERS OF RIBBON COMMUNICATIONS INC. THAT ARE PARTIES HERETO March 3, 2020 TABLE OF CONTENTS Page ARTICLE 1 Definitions Section 1.01 Drafting Conventions; No Construction Against Drafter 2 Section 1.02 Defined Terms 2 Section 1.03 Effectiveness 8 ARTICLE 2 Board Ma

February 28, 2020 EX-21.1

Subsidiaries of the Registrant.

EXHIBIT 21.1 RIBBON COMMUNICATIONS INC. SUBSIDIARIES OF THE REGISTRANT Name Jurisdiction of Incorporation Edgewater Networks, Inc. Delaware Kandy Communications LLC Delaware Network Equipment Technologies, Inc. Delaware Ribbon Communications International Inc. Delaware Ribbon Communications Federal Inc. Delaware Ribbon Communications Operating Company, Inc. Delaware Sonus Networks, Inc. Delaware G

February 28, 2020 EX-4.1

Description of Capital Stock (incorporated by reference to Exhibit 4.1 to the Registrant's Annual Report on Form 10-K, filed February 28, 2020).

Exhibit 4.1 DESCRIPTION OF CAPITAL STOCK The following description of our capital stock and certain provisions of the Ribbon Communications Inc. (the “Company”) Restated Certificate of Incorporation, as amended (the “Certificate of Incorporation”), and Amended and Restated By-laws (the “By-laws”) are summaries and are qualified in their entirety by reference to the full text of the Company’s Certi

February 28, 2020 10-K

The Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019, filed with the Commission on February 28, 2020

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38267 RIBBON COMM

February 19, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 February 19, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commis

February 19, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 February 17, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commis

February 19, 2020 EX-10.2

Severance Agreement, dated February 18, 2020, among Ribbon Communications Inc., Sonus Networks, Inc. d/b/a Ribbon Communications Operating Company, Inc. and Bruce McClelland (incorporated by reference to Exhibit 10.2 to the Registrant's Current Report on Form 8-K, filed February 19, 2020 with the SEC).

Exhibit 10.2 Severance Agreement THIS SEVERANCE AGREEMENT (the “Severance Agreement”) is entered into as of February 18, 2020, and effective as of the Start Date (as defined in that certain Employment Letter Agreement, by and between you and the Company, dated February 18, 2020), between Ribbon Communications Inc. (“Ribbon”), Sonus Networks, Inc. d/b/a Ribbon Communications Operating Company, Inc.

February 19, 2020 EX-10.3

Form of Restricted Stock Unit Award Agreement (Performance-Based Vesting) between Ribbon Communications Inc. and Bruce McClelland (incorporated by reference to Exhibit 10.3 to the Registrant's Current Report on Form 8-K, filed February 19, 2020 with the SEC).

Exhibit 10.3 Restricted Stock Unit Award Agreement (Performance-Based Vesting) THIS RESTRICTED STOCK UNIT AWARD AGREEMENT (the “Agreement”), is made effective as of March 15, 2020 (the “Grant Date”), between Ribbon Communications Inc., a Delaware corporation (the “Company”), and Bruce McClelland (the “Participant”). RECITALS WHEREAS, the Board has determined that it is in the best interests of the

February 19, 2020 EX-10.1

Letter Agreement, dated as of February 18, 2020, among Ribbon Communications Inc., Sonus Networks, Inc. d/b/a Ribbon Communications Operating Company, Inc. and Bruce McClelland (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K, filed February 19, 2020 with the SEC.

Exhibit 10.1 February 18, 2020 Bruce McClelland Via email Dear Bruce, On behalf of Ribbon Communications Inc. (“Ribbon”) and Sonus Networks, Inc. d/b/a Ribbon Communications Operating Company, Inc. (“RCOC” and Ribbon and RCOC, together with its affiliates who may employ you from time to time, the “Company”), I am pleased to provide you with this written offer of employment (this “Agreement”) as Ri

February 19, 2020 EX-99.1

Ribbon Communications Inc. Releases Fourth Quarter and Full Year 2019 Financial Results Revenue was $161 million for the fourth quarter of 2019 Full year 2019 software sales grew 23 percent compared with 2018

Exhibit 99.1 Ribbon Communications Inc. Releases Fourth Quarter and Full Year 2019 Financial Results Revenue was $161 million for the fourth quarter of 2019 Full year 2019 software sales grew 23 percent compared with 2018 February 19, 2020 Conference Call Details Conference call to discuss its financial results for the fourth quarter and year ended December 31, 2019 on February 19, 2020, via the i

January 30, 2020 EX-10.2

Severance Agreement, dated as of January 29, 2020, among Ribbon Communications Inc., Ribbon Communications Operating Company, Inc. and Anthony Scarfo (incorporated by reference to Exhibit 10.2 of the Registrant's Current Report on Form 8-K, filed January 30, 2020 with the SEC).

Exhibit 10.2 Severance Agreement THIS SEVERANCE AGREEMENT (the “Severance Agreement”) is entered into as of January 29, 2020 (the “Effective Date”) between Ribbon Communications Inc. (“Ribbon”), Ribbon Communications Operating Company, a wholly owned subsidiary of Ribbon Communications Inc., (“RCOC” and together with Ribbon, the “Company”) and Anthony Scarfo (“Executive” or “you”). 1. Definitions.

January 30, 2020 EX-10.1

Severance Agreement, dated as of January 29, 2020, among Ribbon Communications Inc., Ribbon Communications Operating Company, Inc. and Steven Bruny (incorporated by reference to Exhibit 10.1 of the Registrant's Current Report on Form 8-K, filed January 30, 2020 with the SEC).

Exhibit 10.1 Severance Agreement THIS SEVERANCE AGREEMENT (the “Severance Agreement”) is entered into as of January 29, 2020 (the “Effective Date”) between Ribbon Communications Inc. (“Ribbon”), Ribbon Communications Operating Company, a wholly owned subsidiary of Ribbon Communications Inc., (“RCOC” and together with Ribbon, the “Company”) and Steven Bruny (“Executive” or “you”). 1. Definitions. T

January 30, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 January 29, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commiss

January 28, 2020 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 January 27, 2020 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commiss

January 10, 2020 DEFM14A

RBBN / Ribbon Communications Inc. DEFM14A - - DEFM14A

Use these links to rapidly review the document TABLE OF CONTENTS FINANCIAL STATEMENTS OF RIBBON ECI Telecom Group Ltd.

January 2, 2020 EX-10.1

Letter Agreement, dated as of December 27, 2019, among the Registrant, Ribbon Communications Operating Company, Inc. and Franklin W. Hobbs (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K, filed January 2, 2020 with the SEC).

Exhibit 10.1 December 27, 2019 STRICTLY PERSONAL AND CONFIDENTIAL Franklin W. Hobbs Via email Dear Fritz, This letter agreement (this “Agreement”) sets forth the understanding between you and Ribbon Communications Inc. (“Ribbon”) and Sonus Networks, Inc. d/b/a Ribbon Communications Operating Company. Inc., (“RCOC” and Ribbon and RCOC, together with its affiliates who may employ you from time to ti

January 2, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 December 27, 2019 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commis

December 24, 2019 PREM14A

RBBN / Ribbon Communications Inc. PREM14A - - PREM14A

Use these links to rapidly review the document TABLE OF CONTENTS FINANCIAL STATEMENTS OF RIBBON ECI Telecom Group Ltd.

November 20, 2019 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 November 20, 2019 Date of Report (Date of earliest event reported) RIBBON COMMUNICATIONS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38267 82-1669692 (State or Other Jurisdiction of Incorporation) (Commis

Other Listings
DE:NU42 € ٣٫٥٠
Fintel data has been cited in the following publications:
Daily Mail Fox Business Business Insider Wall Street Journal The Washington Post Bloomberg Financial Times Globe and Mail
NASDAQ.com Reuters The Guardian Associated Press FactCheck.org Snopes Politifact
Federal Register The Intercept Forbes Fortune Magazine TheStreet Time Magazine Canadian Broadcasting Corporation International Business Times
Cambridge University Press Investopedia MarketWatch NY Daily News Entrepreneur Newsweek Barron's El Economista