Sip Timer Values (Sec) - Linksys SPA921-NA Administrator's Manual

Chapter 5 SPA900 Series Phone Field Reference

SIP Timer Values (sec)

Field
SIP T1
SIP T2
SIP T4
SIP Timer B
SIP Timer F
SIP Timer H
SIP Timer D
SIP Timer J
INVITE Expires
ReINVITE Expires
Reg Min Expires
Reg Max Expires
Document Version 3.0
Description
RFC 3261 T1 value (RTT estimate), which can range from 0 to 64 seconds.
The default is.5.
RFC 3261 T2 value (maximum retransmit interval for non-INVITE requests and
INVITE responses), which can range from 0 to 64 seconds.
The default is 4.
RFC 3261 T4 value (maximum duration a message remains in the network),
which can range from 0 to 64 seconds.
The default is 5.
INVITE time-out value, which can range from 0 to 64 seconds.
The default is 32.
Non-INVITE time-out value, which can range from 0 to 64 seconds.
The default is 32.
INVITE final response, time-out value, which can range from 0 to 64 seconds.
The default is 32.
ACK hang-around time, which can range from 0 to 64 seconds.
The default is 32.
Non-INVITE response hang-around time, which can range from 0 to 64 seconds.
The default is 32.
INVITE request Expires header value. If you enter 0, the Expires header is not
included in the request.
The default is 240. Range: 0–(2
ReINVITE request Expires header value. If you enter 0, the Expires header is
not included in the request.
30. Range: 0–(2
The default is
Minimum registration expiration time allowed from the proxy in the Expires
header or as a Contact header parameter. If the proxy returns a value less than this
setting, the minimum value is used.
The default is 1.
Maximum registration expiration time allowed from the proxy in the Min-Expires
header. If the value is larger than this setting, the maximum value is used.
The default is 7200.
31
–1).
31
–1).
Linksys 900 Series IP Phone Administrator Guide
SIP Tab
5-11