The parameters in the auto provision template are described as follows: 
account.X.sip_server.Y.transport_type = 
(2)  Changed  the  configuration items-  SIP Session  Timer  and  SIP  Port under the 
Account -> Advanced into Setting -> SIP, and the parameters have also changed. 
To set this feature via web user interface: 
Click on Setting -> SIP 
 
The parameters in the auto provision template are described as follows: 
sip.timer_t1 = 
sip.timer_t2 = 
sip.timer_t4 =