Matrix PRASAR UCS - Page 231

222 Matrix PRASAR UCS System Manual
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.
If you select this check box, make sure you have selected SRTP Mode as Forced or Optional in the
General Parameters under SIP Extension Settings.
RTP Port
• Define the RTP Port:
RTP Listening Port: This is the port on which the Extended SPARSH VP710 listens for SIP messages
over UDP. This port is also used as the source port for sending RTP packets. 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.
Quality of Service
• Set the SIP Quality of Service (QoS) for SIP signaling as:
• SIP DiffServe/ToS. Valid range is 00 to 63. Default: 26.
OR
• Voice DiffServe/ToS. Valid range is 00 to 63. Default: 46.
OR
Video DiffServe/ToS. Valid range is 00 to 63. Default: 46.
NAT Keep Alive
• If Extended SPARSH VP710 is connected behind a NAT router, configure NAT Keep Alive.
• Select the check box Enable NAT Keep Alive to send Keep Alive messages periodically to refresh the
binding in the NAT router. Default: Disabled.
• Define as Interval (sec), the time period, from 001 to 999 seconds, after which the phone should send
Keep Alive message. Default: 120 seconds.
The time period you define should be less than the binding timer of the router.
Timers
• Set the following Timers to the desired value, where required:
• SIP INVITE Timer (sec): This is the time in seconds that the phone waits for a response from the
called party after ending INVITE message. This timer starts after sending INVITE message to the
called party and stops on receipt of the provisional response or the final response or when the user