Direct routing + MTR's

Occasional Visitor



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?


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