Value Range
•
250
•
500
•
1000
•
2000
•
4000
Default Value
500
Configuration File Reference
T2 Timer
Description
Specifies the maximum interval, in seconds, between transmissions
of SIP messages.
Value Range
•
2
•
4
•
8
•
16
•
32
Default Value
4
Configuration File Reference
REGISTER Expires Timer
Description
Specifies the length of time, in seconds, that the registration remains
valid. This value is set in the "Expires" header of the REGISTER
request.
Value Range
1–4294967295
Default Value
3600
Configuration File Reference
Enable Session Timer (RFC 4028)
Description
Specifies the length of time, in seconds, that the unit waits before
terminating SIP sessions when no reply to repeated requests is
received.
Value Range
0, 60–65535
Default Value
0
Configuration File Reference
Session Timer Method
Description
Selects the refreshing method of SIP sessions.
Value Range
•
INVITE
•
UPDATE
•
INVITE/UPDATE
4.5.2 SIP Settings [Line 1]–[Line n]
Document Version: 2017-07
Administrator Guide
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