Session Initiation Protocol (SIP) Trunking Services

The Elgin, Illinois government authority is seeking Session Initiation Protocol (SIP) trunking services delivered over dedicated, carrier-managed transport networks across two distinct core locations. The agency needs to establish a centralized, geographically redundant SIP trunking deployment model that terminates directly inside dual District data centers. This infrastructure must run entirely on an independent, carrier-managed network transport layer up to the on-site routers to ensure reliable communication. The project covers transporting on-premise VoIP traffic across more than sixty school and administrative facilities to the core data centers using the agency's internal network, local switches, and internal routing protocols. The selected provider must absorb, port, and fully maintain all active public-facing direct inward dial numbers currently assigned across these sixty-plus facilities. Additionally, the carrier network must natively support Enhanced 911 parameters, passing precise station-level location identifiers down to the specific building and classroom level to local public safety answering points. Bidders must be onshore organizations based in the United States of America. The agency allows the performance of the work to be completed offsite. The evaluation will consider proposals submitted digitally via email or online, though the agency has not disclosed a specific budget and is looking for cost proposals. All clarifying questions regarding this procurement must be submitted to the agency no later than June 15, 2026.