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PSTN Call Drops if you put the call on hold then resume and hit transfer
Scenario PSTN Call received on Teams Client, placed call on-hold , resume, click transfer and the call drops. No changes anywhere, was working until a client drew my attention. Is anyone experie...
Hi jxace
Our root cause was someone had defined an extra sip port on the hosted SBC trunk in our Direct routing setup
The hosted SBCs were load balancing between 2. Unfortunately though, the fqdn in the contact header means this caused problems with TEAMS.
Our SBC provider disabled the 'bad' port - then all calls were fine in the respect of any ACKs or re-invites etc between TEAMS and the SBC.Not sure if this helps but good luck
naimeshmistry I'm going to see if RealTime_M365 can help - she knows a lot about this topic.