PLANO, Texas, Nov. 17, 2025 /PRNewswire/ -- Ribbon Communications Inc. (NASDAQ:RBBN), a global leader in real-time communications technology and IP optical networking solutions, today announced its participation in four prominent investor conferences scheduled before the end of the year:

Craig-Hallum 16^th Annual Alpha Select Conference (November 18, 2025)
ROTH Technology Conference (November 19, 2025)
6th Annual Needham Tech Week (November 20, 2025)
UBS TMT Conference (December 1-4, 2025)

Qualified investors may contact IR@rbbn.com to set up one on one meetings.

Ribbon is committed to helping service providers, enterprises and critical infrastructure operators worldwide modernize and secure their networks and services.

About Ribbon

Ribbon Communications (NASDAQ:RBBN) delivers secure cloud communications and IP and optical networking solutions to service providers, enterprises and critical infrastructure sectors globally. We engage deeply with our customers, helping them modernize their networks for improved competitive positioning and business outcomes in today's smart, always-on and data-hungry world. Our end-to-end portfolio of communications software and IP Optical networking solutions delivers superior value and innovation by leveraging cloud-native architectures, automation and analytics tools, and leading-edge security. We maintain a keen focus on our commitments to Environmental, Social, and Governance (ESG) matters, offering an annual Sustainability Report to our stakeholders. To learn more about Ribbon, please visit rbbn.com

Important Information Regarding Forward-Looking Statements

The information in this release contains forward-looking statements regarding future events that involve risks and uncertainties. All statements other than statements of historical facts contained in this release, including those regarding the expected benefits from use of Ribbon Communication's products, are forward-looking statements. The actual results of Ribbon Communications may differ materially from those contemplated by the forward-looking statements. For further information regarding risks and uncertainties associated with Ribbon Communications' business, please refer to the "Risk Factors" section of Ribbon Communications' most recent annual or quarterly report filed with the SEC. Any forward-looking statements represent Ribbon Communications' views only as of the date on which such statement is made and should not be relied upon as representing Ribbon Communications' views as of any subsequent date. While Ribbon Communications may elect to update forward-looking statements at some point, Ribbon Communications specifically disclaims any obligation to do so.

Investor Contact

+1 (978) 614-8050

ir@rbbn.com

Media Contact

Catherine Berthier

+1 (646) 741-1974

cberthier@rbbn.com

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SOURCE Ribbon Communications Inc.

Ribbon to Participate in Four Leading Investor Conferences Before Year-End