(0000000001E2985E)$$START-MEDIATIONSERVER
MediationCall: 7f4cf1445165460a8b0706a17bba53b4
CallId: 2c474326-decf-4484-bf6b-99c0fac48970
From: sip:22736;phone-context=beijing@sunits.com;user=phone
To: sip:+58960000@sunits.com;user=phone
Direction: Inbound
Start-Line: FailureResponseException: ResponseCode=404 ResponseText=Not Found
DiagnosticInformation=ErrorCode=33034,Source=LYNC-SERVER.sunits.com,Reason=Ms-Application-Aor header is not valid.
Microsoft.Rtc.Signaling.DiagnosticHeader
Microsoft.Rtc.Signaling.FailureResponseException:A 404 (Not Found) response was received from the network and the operation failed. See the exception details for more information.