Sip Timer Values (Sec) - Cisco SPA301 Administration Manual

Cisco SPA IP Phone Field Reference
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Cisco Small Business SPA300 Series, SPA500 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
Description
RFC 3261 T1 value (RTT estimate) that 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)
that can range from 0 to 64 seconds. Defaults to 4
seconds.
RFC 3261 T4 value (maximum duration a message
remains in the network) that can range from 0 to
64 seconds. Defaults to 5 seconds.
INVITE time-out value that can range from 0 to 64
seconds. Defaults to 16 seconds.
Non-INVITE time-out value that can range from 0
to 64 seconds. Defaults to 16 seconds.
INVITE final response, time-out value that can
range from 0 to 64 seconds. Defaults to 16
seconds.
ACK hang-around time that can range from 0 to 64
seconds. Defaults to 16 seconds.
Non-INVITE response hang-around time that 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.
A
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