Forum Discussion
Direct Routing - Q.850 Cause 63 Get Inbound Direct routing - no trunk config found in ACMS
- Jun 10, 2021
DanLeaf810 I was meant to update this at the time. I had to remove the domains in full from Microsoft 365 and add them again (not forgetting to activate them by assigning users).
I didn't find one specific thing that was wrong when checking the setup end-to-end so can only assume something didn't activate correctly on the back end. Having removed the SBCs from the Teams admin portal and the domains and started from scratch all worked second time around.
Hi,
In the INVITE message to Teams from the SBC. Can you check the message and check that the SBC FQDN is correct and matches the OnlinePSTNGateway configured?
You want to make sure it's not the local FQDN e.g. your SBC may be contoso.local but the MS FQDN is configured as contoso.com. If the SBC isn't configured correctly, it could be sending out the wrong FQDN which means MS wouldn't accept your incoming message