This happened Friday after upgrading from version 13 to 22.214.171.124.
PBX will automatically transfer our calls to the answering service at 5 pm.
Now when the calls are transferred there is no audio either direction. The call rings the answering service. They answer but the caller cannot hear them and they cannot hear the caller.
Nothing has changed with our SIP service, router, or phone system otherwise.
Any suggestions would be appreciated,