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Teams Phone Outbound Call Failure Fix by Gaurav Chhabra is a document available to read on EtoBox.

What is Teams Phone Outbound Call Failure Fix about?

In a Teams Phone deployment using Direct Routing, users are experiencing issues with outbound PSTN calls failing while inbound calls succeed. The SBC logs indicate that Microsoft is responding to SIP option requests but is not sending them, leading to the conclusion that a missing external DNS entry from the FQDN of the SBC is the cause of the issue. The correct answer to the problem is that an external DNS entry is missing, as indicated by the majority vote.

Author

Gaurav Chhabra

Language

EN