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Ribbon Achieves Critical Infrastructure Modernization Milestone Across North America's Largest Transportation Network

The expanded deployment adds Ribbon equipment and Professional Services to the MTA's existing communications backbone.

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Ribbon Communications (Nasdaq: RBBN) is expanding its relationship with the Metropolitan Transportation Authority through an additional deployment supporting communications modernization.

The MTA already uses Ribbon's C20 Call Controller and Application Server to distribute voice services to approximately 70,000 employees. The expanded deployment adds Ribbon's G5 Media Gateway and Professional Services, alongside a new NUSO solution replacing legacy contact center infrastructure. Ribbon says the combined solutions support a transition from legacy telephone systems to SIP-based voice services while preserving existing analog investments and maintaining operational continuity.

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Positive

  • Minor pointThe expanded MTA deployment adds Ribbon's G5 Media Gateway and Professional Services.

Negative

  • None.

Key Figures

MTA service trips: Nearly 1.9 billion trips Employees supported: Approximately 70,000 employees
MTA service trips
Nearly 1.9 billion trips
MTA subway, bus and paratransit services in 2025
Employees supported
Approximately 70,000 employees
Communications backbone described in the article

Key Terms

tdm, sip
2 terms
tdm technical
"legacy TDM PBX environments to SIP-based services"
Therapeutic drug monitoring (TDM) is the regular measurement of a medicine’s level in a patient’s blood to ensure the dose is safe and working as intended. For investors, TDM matters because it can improve treatment success, reduce costly side effects, and strengthen regulatory approval and clinical adoption — like using a thermostat to keep a system within a safe, effective range.
sip technical
"legacy TDM PBX environments to SIP-based services"
A Securities Information Processor (SIP) is the centralized system that collects and publishes the official best bid and offer prices and recent trades across multiple stock exchanges, acting like a single public scoreboard that shows the prevailing market price. Investors rely on it to see a consolidated, trustworthy view of price and volume so they can make timely buy or sell decisions; differences between the SIP and faster exchange feeds can affect execution quality and perceived market fairness.
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Paves the way for a next-generation network without compromising operational continuity

PLANO, Texas, Oct. 8, 2026 /PRNewswire/ -- Ribbon Communications Inc. (Nasdaq: RBBN), a global leader in real-time communications technology, IP routing, and optical networking solutions, is expanding its longstanding relationship with the Metropolitan Transportation Authority (MTA), whose New York City Transit subway, bus and paratransit services alone accounted for nearly 1.9 billion trips in 2025. This latest phase advances the MTA's efforts to modernize communications across North America's largest transportation network with a more flexible environment.

The MTA is already leveraging Ribbon's C20 Call Controller and Application Server as its communications backbone, providing a centralized platform that connects and distributes voice services to approximately 70,000 employees across the organization.

The expanded deployment adds Ribbon's G5 Media Gateway and Professional Services, while replacing the MTA's legacy contact center infrastructure with a new solution from NUSO. Together, these solutions enable a seamless transition from legacy TDM PBX environments to SIP-based services while preserving existing analog investments, maintaining operational continuity and gaining improved efficiency and service delivery.

"We're proud to support the MTA with a modernization strategy that maintains operational continuity while delivering the reliability, flexibility, efficiency and future readiness it requires," said Dave Hogan, SVP Enterprise Sales, Ribbon. "This is an important milestone in our journey together, and we look forward to continuing to advance the MTA's modernization efforts."

About Ribbon
Ribbon Communications (Nasdaq: RBBN) is a global provider of voice communications software, IP routing, and optical networking to mobile and wireline service providers, enterprises, critical infrastructure and defense sectors. We support our customers' Path to Autonomous Networks by leveraging the latest AIOps automation platforms and Agentic AI technologies, helping them deliver better customer experiences, reduce operational costs, and achieve sustainable growth. To learn more about Ribbon, 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 

Cision View original content to download multimedia:https://www.prnewswire.com/news-releases/ribbon-achieves-critical-infrastructure-modernization-milestone-across-north-americas-largest-transportation-network-302901764.html

SOURCE Ribbon Communications Inc.

FAQ

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What is Ribbon adding to the MTA communications modernization deployment?

Ribbon is adding its G5 Media Gateway and Professional Services to the MTA's existing communications deployment. A new NUSO solution is also replacing the MTA's legacy contact center infrastructure.

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