Aastra 9143i Series Administrator's Manual page 886

IP Phone Administrator Guide
Operational, Basic, and Advanced Parameters
Parameter –
sip T1 timer
T1 Timer
(in Web UI)
Description
Format
Default Value
Range
Example
Parameter –
sip T2 timer
T2 Timer
(in Web UI)
Description
Format
Default Value
Range
Example
A-106
Aastra Web UI Advanced Settings->Global SIP->
Advanced SIP Settings
Configuration Files aastra.cfg, <mac>.cfg
This timer is a SIP transaction layer timer defined in RFC 3261.
Timer 1 is an estimate, in milliseconds, of the round-trip time (RTT).
Integer
500
Not Applicable
sip T1 timer: 600
Aastra Web UI Advanced Settings->Global SIP->
Advanced SIP Settings
Configuration Files aastra.cfg, <mac>.cfg
This timer is a SIP transaction layer timer defined in RFC 3261.
Timer 2 represents the amount of time, in milliseconds, a non-INVITE
server transaction takes to respond to a request.
Integer
0
Not Applicable
sip T2 timer: 8
41-001160-03 Rev 00, Release 2.5