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

Paves the way for a next-generation network without compromising operational continuity PLANO, Texas, Oct. 8, 2026 // -- 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.