Sip Timer Values (Sec) - Cisco SPA 501G Administration Manual

Cisco SPA 500 Series and Wireless IP Phone Field Reference
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Cisco SPA 500 Series and WIP310 IP Phone Administration Guide

SIP Timer Values (sec)

Parameter
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
Description
RFC 3261 T1 value (RTT estimate), which can range
from 0 to 64 seconds. Defaults to .5 seconds.
RFC 3261 T2 value (maximum retransmit interval for
non-INVITE requests and INVITE responses), which can
range from 0 to 64 seconds. Defaults to 4 seconds.
RFC 3261 T4 value (maximum duration a message
remains in the network), which can range from 0 to 64
seconds. Defaults to 5 seconds.
INVITE time-out value, which can range from 0 to 64
seconds. Defaults to 16 seconds.
Non-INVITE time-out value, which can range from 0 to
64 seconds.Defaults to 16 seconds.
INVITE final response, time-out value, which can range
from 0 to 64 seconds.Defaults to 16 seconds.
ACK hang-around time, which can range from 0 to 64
seconds. Defaults to 16 seconds.
Non-INVITE response hang-around time, which can
range from 0 to 64 seconds. Defaults to 16 seconds.
INVITE request Expires header value. If you enter 0, the
Expires header is not included in the request. Ranges
from 0 to 19999999999999999999999999999999.
Defaults to 240 seconds.
ReINVITE request Expires header value. If you enter 0,
the Expires header is not included in the request.
Ranges from 0 to
19999999999999999999999999999999.
Defaults to 30
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.
Defaults to 1 second.
B
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