Voice Circuit Modernization Service

The government authority located in Ada, Oklahoma is seeking a vendor to provide voice circuit modernization services. The agency needs to transition its enterprise voice infrastructure from a decentralized, legacy circuit-based architecture to a centralized, highly available Session Initiation Protocol (SIP)-based Unified Communications (UC) environment. This initiative aims to solve the inefficiencies of the legacy system through a full redesign and re-architecture of the existing Unified Communications platform. The requested scope of work covers the replacement of core platforms, including CUCM, CUBE, Unity, and CER. The project also requires the procurement, installation, or replacement of hardware such as servers, gateways, phones, and analog devices, alongside endpoint deployment, relocation, or physical troubleshooting. Additionally, the selected vendor must handle direct coordination with telecommunications carriers or SIP providers and troubleshoot issues determined to be carrier-side or outside the agency-controlled infrastructure. The scope further encompasses WAN and LAN redesign, reconfiguration, or performance tuning, as well as the resolution of underlying network capacity or performance issues. The agency also requires integration with non-UC applications, such as contact center platforms, paging systems, and third-party applications, unless explicitly stated otherwise. Finally, the work includes large-scale manual data correction beyond reasonable normalization, end-user training, communications, adoption programs, ongoing monitoring, help desk support, and incident management. Eligible bidders must be onshore organizations located in the United States. The agency requires the performance of the work to be completed offsite. Bidders must submit their proposals digitally via email or online, and the agency is currently looking for proposals to establish the budget. All questions regarding this opportunity must be submitted no later than May 27, 2026.