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Lopicl's avatar
Lopicl
Copper Contributor
Dec 10, 2020

Microsoft Teams Direct Routing Outbound Calls not working (error 504)

Hello,   I am trying to configure Direct Routing on my tenant, using my carrier's hosted multi-tenant SBC.   They connected to my tenant with powershell and made all the needed configurations wit...
Calling
Direct Routing
microsoft teams
  • Lopicl's avatar
    Lopicl
    Dec 10, 2020

    Ok me and my carrier found the issue.

     

    The DNS record for the SBC FQDN was not properly set, thus not redirecting to the SBC IP.

bluecat's avatar
bluecat
Copper Contributor
OK, Thanks for the reply.
SergioGaray's avatar
SergioGaray
Copper Contributor
Feb 24, 2022
hey bluecat did you solved that issue? what it was?

  • bluecat's avatar
    bluecat
    Copper Contributor
    Feb 25, 2022
    SergioGaray We did not solve the issue, we had to work around it by adding the the SBC's (i.e. New-CsOnlinePSTNGateway -Fqdn <SBC FQDN> -SipSignalingPort <SBC SIP Port> -MaxConcurrentSessions <Max Concurrent Sessions the SBC can handle> -Enabled $true)

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