Yealink CP860 [141/417] Procedure

Configuring Basic Features

129

Parameter

Permitted Values

Default

None

To specify whether to use outbound proxy server in a dialog via web user interface:

1. Click on Features->General Information.

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 retransmitting time of any SIP request

message. The re-transmitting and doubling of T1 will continue until the retransmitting

time reaches the T2 value. Timer T4 represents the time the network will take to clear

messages between the SIP client and server. 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.

Parameters:

account.X.advanced.timer_t1

account.X.advanced.timer_t2