Matrix PRASAR UCS - Page 254

Matrix PRASAR UCS System Manual 245
• If you want the application to register using the WAN network, select Use WAN Port IP Address as the
Internal Registrar Server Address.
• If you want the application to register using the LAN network, select Use LAN Port IP Address as
Registrar Server Address.
• If Dynamic DNS is configured in the Network Parameters, select Use Dynamic DNS Host Name as
Internal Registrar Server Address.
By default, Use WAN Port IP Address is selected as the Internal Registrar Server Address.
• Select the appropriate External Registrar Server Address to register the application with the SIP
Registrar of PRASAR UCS from a public network. Select the option according to your installation scenario:
• If you want the application to register using the WAN network, select Use WAN Port IP Address as
External Registrar Server Address.
• If the application is connected in the Public Network and PRASAR UCS is located behind a Router, or
behind a NAT Router and STUN is programmed, select Use Router/STUN's IP Address as External
Registrar Server Address.
Make sure you configure either the Router’s Public IP Address or Simple Traversal of UDPs
through NATs (STUN) in Network Parameters. For details, see “Configuring Network Parameters”.
• If Dynamic DNS is configured in the Network Parameters, select Use Dynamic DNS Host Name as
External Registrar Server Address.
By default, Use WAN Port IP Address is selected as the External Registrar Server Address.
Transport Mode and SRTP
• Select the protocol to be used to transport the SIP messages. You can select the Transport Mode as TCP
or TLS.
• If you select TCP, make sure the SIP Over TCP check box is selected in VoIP Parameters.
• If you select TLS, make sure the SIP Over TLS check box is selected in VoIP Parameters.
For secure conversations over SIP, select the Enable SRTP? check box. The SIP messages will be
transported over SRTP only.
The application supports RTP Relay. For detailed description, see “Configuring VoIP Parameters”.
RTP Port
• Define RTP Port:
• RTP Listening Port: This is the port on which the phone listens for RTP packets over UDP. This port is
also used as the source port for sending RTP packets to the remote peer. The valid range for this port
is 1025-65278. Default: 8000.