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relkniw's avatar
relkniw
Brass Contributor
Nov 08, 2021

Graph API: create a PSTN call and invite a PSTN participant

Hello everybody,   We are using the MS Graph API within a C# project. After successful creating a PSTN call from our bot like described here https://docs.microsoft.com/en-us/graph/api/application-...
calling
developer
Graph API
microsoft teams
Frank_Roger365's avatar
Frank_Roger365
Copper Contributor
Feb 27, 2023

Previously, we were able to invite a PSTN number into the conversation if it was the first escalation. Meaning:
1. Bot called teams user
2. Teams user accepted (p-p call)
3. Inviteparticipant to PSTN.
4. Now a groupcall with bot, teamsuser and PSTN user.

As of last week this started to fail randomly (for some users) and now it just is not working anymore at all. The invite is accepted, but it fails, returning 'addParticipants failed for participant 4:...' with 'DiagCode: 500#10339.@'.

Does anyone know why this changed / what the errorcode means (the 10339 part)?

dhaerle-mirage's avatar
dhaerle-mirage
Copper Contributor
Feb 28, 2023
We do have the exact same issue - no outbound calls possible via BOT and Inviteparticipant. It started last week with some calls and since yesterday every call is not working.
  • bsingh1700's avatar
    bsingh1700
    Copper Contributor
    Mar 01, 2023

    Sayali-MSFT Any update on the issue if its being fixed now. Also created service request and support ticket for MS. Please let me know for any update

  • bsingh1700's avatar
    bsingh1700
    Copper Contributor
    Mar 01, 2023

    Frank_Roger365 I also do not see any tickets in my admin center. Did they asked for tenant id from you or it was resolved automatically

  • bsingh1700's avatar
    bsingh1700
    Copper Contributor
    Mar 01, 2023
    For us still not a single outbound call is working. Hope they will apply the fix for all tenants ASAP.
  • Frank_Roger365's avatar
    Frank_Roger365
    Copper Contributor
    Feb 28, 2023
    Its visible in your admin center (for us at least) since the links point to your own tenant. However, we think the fix is already deployed here and there, as we notice some of the calls succeeding again.
  • bsingh1700's avatar
    bsingh1700
    Copper Contributor
    Feb 28, 2023
    Can u please give us the link where there are updates regarding the fix..like u mention TM521711
  • Frank_Roger365's avatar
    Frank_Roger365
    Copper Contributor
    Feb 28, 2023
    FYI, this will (is being) fixed. TM521711
  • bsingh1700's avatar
    bsingh1700
    Copper Contributor
    Feb 28, 2023

    Sayali-MSFT Thanks. Please raise the priority as business is impacting directly due to this sudden issue.

  • Sayali-MSFT's avatar
    Sayali-MSFT
    Icon for Microsoft rankMicrosoft
    Feb 28, 2023
    bsingh1700 , dhaerle-mirage - We are informing the engineering team, we will let you know the once we get any update.

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