MS Teams Direct Routing- No Audio

Question

Hi I am using MS Teams Direct Routing. MS client users unable to hear any audio for Inbound and Outbound calls. There can hear Audio when calling local extension in Avaya PBX. I see the following error in my PSTB usage report

Usage reports - PSTN Usage

Final SIP Code : 410 MediaError Final Microsoft Subcode 3808 Event type: success

Thanks SJ

Answer 1

Hi @Salah Jaffer Abdulaziz

When you troubleshoot Direct Routing issues, the specific cause of a call failure can be identified through a combination of the following response codes:

• SIP response code (CallEndReason): A three-digit response code that shows the request status. This code is received from the Session Border Controller (SBC) or Direct Routing SIP interface. It explains what occurred. For example, the SBC didn't reply in a timely manner. The SIP response codes are defined in RFC 3261.
• Microsoft response code (CallEndSubReason): A response code that's assigned by Microsoft. This code is usually six digits long, but it might be reported as 0 digits or more than six digits, depending on the problem. It explains why the problem occurred.

For more information about the most common errors and suggested actions to further troubleshoot and mitigate the issue, select a SIP response code from the following:

• 410 Gone

If this does not resolve your issue, please contact Online Support for more detailed instructions. For the most current support phone number in your country/region, see the global phone numbers list.

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