Pre-planning & Prerequisites

Overview

Direct Routing lets Microsoft Teams send/receive PSTN calls through your SIP trunk (Cebod Telecom) by connecting a certified SBC (Session Border Controller) to Microsoft Teams. In this setup:

• Outbound calls from Teams go to the SBC → Cebod SIP trunk → PSTN.

• Inbound calls from PSTN arrive at Cebod → SIP trunk → SBC → Teams user.

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1. Microsoft Licensing:

   • Each Teams user who will make/receive PSTN calls requires a Phone System license (Microsoft Teams Essentials with Phone). Ensure numbers are assigned or available.

   • You will need Resource account licenses (Microsoft Teams Phone Resource Account) to set up features like Call Centre/Queue, Ring Group, Auto-attendant/IVR, etc.

2. Phone numbers (DIDs) from Cebod Telecom:

   • Decide which numbers from your Cebod Telecom account will be assigned to Teams.