Planet Networking & Communication VIP-255PT User Manual page 21

Field
UDP Keep-alive Message
UDP Keep-alive Interval
Login Expire
Local SIP Port
Local RTP Port
RPort
STUN Server
SIP Session Timer T1/T2
Voice/SIP QoS:
Figure 15. SIP advanced setting page
Description
To deliver the packets on a regular time schedule to keep
NAT port could open continued.
To setup the schedule time for delivering the packets
This parameter allows user to specify the time frequency
that unit refreshes its registration with the specified
registrar.
To defines the SIP port number, please follow your ISP
To defines the RTP port number, please follow your ISP
The parameter allows SIP phone to tell the proxy to only
send responses back to a particular address and port.
SIP Extension to notify SIP server that the unit is behind
the NAT/Firewall.
Allow you to trun on a timer to check if a SIP session is
still active or should be terminated.
Enable the QoS feature configure the QoS ID values
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