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PSTN Call transfer ends call - Direct Routing
Currently running Ribbon SBC 2K setup for Teams direct routing. If Party A (external caller) calls Party B (Teams user) and Party B attempts to transfer the call, the call in Teams drops / ends, ...
That was the really strang part. I wasn't receiving any INVITE, REINVITE or even BYE. The call would stay up as far as SBC is concerned. Anyway I Enabled Hold Music on Teams SG on the Ribbon SBC. This has fixed the issue even though calls on hold were never at fault.
Thanks for the response though!
Do you have a copy of the SIP trace in both directions? I've seen similar when a SIP INVITE is sent to Teams during the middle of a call, causing Teams to drop the call.
That was the really strang part. I wasn't receiving any INVITE, REINVITE or even BYE. The call would stay up as far as SBC is concerned. Anyway I Enabled Hold Music on Teams SG on the Ribbon SBC. This has fixed the issue even though calls on hold were never at fault.
Thanks for the response though!