Direct routing + MTR's

Copper Contributor



I've been unable to find the answer to this question so I'm posting here.


If direct routing is configured to utilize an on-premise SBC, will I be able to make PSTN calls from an MTR (or teams client for that matter) that lives in the same location as the SBC if there is an internet outage?


Will call control need to hit the teams tenant to know how to route a call to the SBC?


3 Replies


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best response confirmed by Jlatessa (Copper Contributor)
This can depend on the SBC you have, and if you have a specific feature on it. The feature you're looking for is Survivable Branch Appliance. This is a feature that allows your local SBC to act as a device registration end-point for Teams clients so they can continue to make/receive calls based on the Teams configurations, if Teams is unavailable.
Thank you for the information!