User Manual

Configuring Basic Features
93
2. Select the desired value from the pull-down list of Use Outbound Proxy In Dialog.
3. Click Confirm to accept the change.
SIP session timers T1, T2 and T4 are SIP transaction layer timers defined in RFC 3261.
Timer T1 is an estimate of the Round Trip Time (RTT) of transactions between a SIP client
and SIP server. Timer T2 represents the maximum retransmit interval for non-INVITE
requests and INVITE responses. Timer T4 represents the maximum duration a message
will remain in the network. These session timers are configurable on IP phones.
Procedure
SIP session timer can be configured using the configuration files or locally.
Configuration File
<MAC>.cfg
Configure SIP session timer.
For more information, refer to SIP
Session Timer on page 307.
Local
Web User Interface
Configure SIP session timer.
Navigate to:
http://<phoneIPAddress>/servlet
?p=account-adv&q=load&acc=
0