Appendix A - Disconnection Causes
Polycom®, Inc. 634
SIP remote device did not respond in the
given time frame
The endpoint did not respond in the given time frame.
SIP trans error TCP Invite A SIP Invite was sent via TCP, but the endpoint was not found.
SIP transport error Unable to initiate connection with the endpoint.
SIP unauthorized The request requires user authentication.
SIP unsupported media type The server is refusing to service the request because the message
body of the request is in a format not supported by the requested
resource for the requested method.
Disconnection Cause Description