R2511-HP MSR Router Series Voice Configuration Guide(V5)

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the registrar. Otherwise, the voice gateway will not initiate an authentication request. If the realm
argument is not locally configured, the voice gateway will not judge the configuration of realm on
the server and consider the server is trusted.
Failed to set up point-to-point calls
Symptom
The UA could not set up point-to-point calls.
Solution
Check that the IP address and the port number of the remote voice gateway are correctly configured.
Failed to send register requests
Symptom
The UA does not send REGISTER messages.
Solution
Do the following:
• Execute the debugging voice sip command to see whether REGISTER messages are being sent.
• If no REGISTER messages are sent, enable the registration function with the register-enable
command.
Failed to set up point-to-point SIP calls over TLS
Symptom
The UA could not set up point-to-point SIP calls over TLS when the basic voice gateway settings are
correct.
Solution
Check that:
• The devices of both sides have certificates.
• TLS policies have been configured.
• TLS policies have been referenced in SIP client view.
• TLS is specified as the transport layer protocol for outgoing SIP calls. (You can specify the transport
layer protocol in either VoIP voice entity view or SIP client view.)
• Listening ports are enabled on both the calling device and the called device.
• The number of the port corresponding to the destination address is set to 5061 for VoIP voice entity.