To Setup Direct Routing, head over to team's admin centre by clicking this link Dashboard - Microsoft Teams admin center. And go to Voice > Direct Routing > SBCs and click add. Adjust the details as highlighted below, once done, click save.

Create a voice routing policies if have not yet created one by going to Voice > Voice Routing Policies. In this example we will create Teams Dialling voice routing policy.

Click add, to create a new voice routing policy. Set the name to “Teams Dialling” and under PSTN usage records add “teams”.

Next add a Voice Routes. Go to Voice > Direct Routing > Voice Routes and click add. Set the Priority to 2, and the dialled number pattern to .* . Under SBCs enrolled, select the SBC you created. Under PSTN usage records use the PSTN usage records you just created.

To assign the setting/policies to users, go to Users > Manage Users or go Manage users - Microsoft Teams admin center .
Edit General information by selecting the user you want to edit, and under Account click edit beside General information.

Update the following details:



Once the SBC is active, please go back to the Voice Over Cloud Portal > Marketplace > Teams Integration > Manage. Confirm that your Direct Routing SBC is active and then you assign Users to the Teams Integration.