Forum Discussion
Teams Voice
One of my client was asking that Is there any way if they have already Voice devices from different vendor. He wants to configure PSTN with old number which he was using before with different device. How can we incorporate old PSTN and number with Teams environment?
3 Replies
Yes, it can integrate existing PSTN number and third-party voice devices:
1. Direct Routing
• Allows your client to connect their own telephony provider or SIP trunk to Teams.
• They can retain their existing PSTN number and use certified Session Border Controllers (SBCs) to route calls between Teams and their legacy system.
• Ideal if they already have PBX systems, SIP trunks, or voice gateways from other vendors.
2. Operator Connect
• To work with a certified telecom provider who handles the PSTN integration.
• They can port their existing number to the provider and assign it to Teams users.
• Easier to manage than Direct Routing, but less customizable.
3. Microsoft Calling Plans
• Microsoft becomes the PSTN provider.
• Your client would need to port their old number to Microsoft, which can take time and may involve relinquishing control of the number.
• Best for small businesses without complex voice infrastructure.This tip is sooo great!
