Item 5.02. Departure of Directors or Certain Officers; Election of Directors;


           Appointment of Certain Officers; Compensatory Arrangements of Certain
           Officers.




In connection with the preparation for the 2022 annual meeting of stockholders (the "Annual Meeting") of Ribbon Communications Inc. (the "Company"), on March 30, 2022, Krish A. Prabhu, a member of the Company's Board of Directors (the "Board"), determined that he does not intend to stand for re-election as a director of the Company when his term expires at the Annual Meeting. Mr. Prabhu will remain a member of the Board and of the committees of the Board on which he currently serves through the Annual Meeting. The Company thanks Mr. Prabhu for his dedicated service, leadership, and expert contributions made in connection with the Company's strategy to establish itself as a leader in IP Optical networking.

The Board expects to set the size of the Board of Directors at eight members, effective as of the Annual Meeting, so that there will not be a vacancy on the Board as a result of Mr. Prabhu's decision.

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