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Service | Customer Service, Contact Center, Fie...
Answered

Logging inbound Voice Calls

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Posted on by 6
Hi everyone,
we have a voice bot in Dynamics 365 Contact Center with Copilot Studio. The inbound phone number is on Teams Phone, set up via Teams Phone Extensibility (TPE) following this tutorial:
https://learn.microsoft.com/en-us/dynamics365/contact-center/administer/configure-teams-phone-in-voice-channel
Call flow: PSTN > carrier > SBC > Teams Phone > ACS > Copilot Studio agent.
The problem we want to debug: audio artifacts (noise, crackling) of almost every inbound call.
Microsoft support told us to enable ACS Call Diagnostics:
https://learn.microsoft.com/en-us/azure/communication-services/concepts/voice-video-calling/call-diagnostics
But this needs Diagnostic Settings on the ACS resource, and we cannot find this resource anywhere in our Azure tenant. Even Global Admin doesn't see it. We searched also by the Immutable Resource ID from the Dynamics admin center, also nothing.
Then I found this in the docs:
"...it eliminates the need for customers to bring their own Azure Communication Services resource."
https://learn.microsoft.com/en-us/dynamics365/release-plan/2025wave1/service/dynamics365-contact-center/use-teams-phone-contact-center
So in TPE setup the ACS resource is hosted by Microsoft, not by us. We tested also in our own internal tenant, same result. For direct ACS phone numbers the resource IS visible. For Teams Phone numbers, not visible.
So my question is: how to get ACS-side call telemetry (jitter, packet loss, MOS, codec events) when we have no access to the resource?
- Is there another diagnostic tool for TPE setups?
 
Any ideas or experience would be appreciated. Thanks!
I have the same question (0)
  • CU07062333-0 Profile Picture
    4 on at
    Its been my experience that there is nuanced disconnect between Azure and M365. 
    Dynamics makes use of both but setup for things like diagnostics would probably be on the M365 space.
    GA on Azure doesn't cover access in M365.
    I would speak to someone who is an admin on the M365 space.
  • Verified answer
    Muhammad Shahzad Shafique Profile Picture
    2,606 Most Valuable Professional on at
    You cannot access ACS Call Diagnostics for Teams Phone Extensibility (TPE) deployments because the ACS resource is Microsoft-managed and not exposed in your Azure subscription.
    For TPE:
    • Teams Phone → Microsoft-managed ACS → Dynamics 365 Contact Center
    • The ACS resource is hosted by Microsoft.
    • Customer Azure tenants do not have visibility to the underlying ACS resource.
    • Therefore, you cannot configure Diagnostic Settings, Log Analytics, or ACS Call Diagnostics yourself.
    What you can do instead
    • Use Teams Call Analytics and Call Quality Dashboard (CQD) to investigate PSTN/SBC/Teams media quality.
    • Review SBC health, packet loss, jitter, and transcoding metrics if using Direct Routing.
    • Open a Microsoft Support ticket and provide:
      • Call timestamps
      • Calling/called numbers
      • Conversation IDs / Session IDs
      • Tenant ID
    Microsoft can access backend ACS telemetry that customers cannot see in TPE scenarios.
     

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