Yealink CP860 - Page 142

Administrator’s Guide for CP860 IP conference phones
130
account.X.advanced.timer_t4
Local
Web User Interface
Configure SIP session timer.
Navigate to:
http://<phoneIPAddress>/servlet
?p=account-adv&q=load&acc=
0
Details of Configuration Parameters:
Parameters
Permitted Values
Default
account.X.advanced.timer_t1
(X = 1)
Float from 0.5 to10
0.5
Description:
Configures the SIP session timer T1 (in seconds).
T1 is an estimate of the Round Trip Time (RTT) of transactions between a SIP client
and SIP server.
Web User Interface:
Account->Advanced->SIP Session Timer T1 (0.5~10s)
Phone User Interface:
None
account.X.advanced.timer_t2
(X = 1)
Float from 2 to 40
4
Description:
Configures the session timer T2 (in seconds).
T2 represents the maximum retransmit interval for non-INVITE requests and INVITE
responses.
Web User Interface:
Account->Advanced->SIP Session Timer T2 (2~40s)
Phone User Interface:
None
account.X.advanced.timer_t4
(X = 1)
Float from 2.5 to 60
5