Matrix PRASAR UCS - Page 219

210 Matrix PRASAR UCS System Manual
• Headset
• Ringer Acknowledge
• Local Menu
• You can also connect a DSS Console (DSS532) with SPARSH VP510. For instructions:
• to install the DSS532 with SPARSH VP510, see “Installing DSS532 with SPARSH VP510”.
• to configure the DSS keys of the Console, see “Configuring DSS Console Keys connected to
SPARSH VP510”.
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 SPARSH VP510 listens for RTP 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
• RTP DiffServe/ToS. Valid range is 00 to 63. Default: 46.
NAT Keep Alive
• If the SPARSH VP510 is connected behind a NAT router, configure NAT Keep Alive.
• Select the Enable NAT Keep Alive check box 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.