Microsoft Teams Cloud Unified Communications with Telephony Integration

This opportunity seeks a supplier to deliver a resilient, cloud-based telephony solution that connects the Public Switched Telephone Network (PSTN) to Microsoft Teams using Microsoft-certified Session Border Controllers (SBCs). The solution must enable seamless migration from the current telephony provider with minimal business disruption and support a phased implementation approach. The supplier will be responsible for providing end-to-end services including: infrastructure and connectivity setup, ongoing system management, technical support, and all professional services required for successful implementation, configuration, and ongoing support of the Direct Routing solution. Suppliers should demonstrate experience with Microsoft Teams telephony integration, SBC deployment, PSTN connectivity, and change management for large-scale telephony migrations.