Cisco SPA 501G Administration Guide

Cisco SPA 500 Series and Wireless IP Phone Field Reference
SIP Tab
Cisco SPA 500 Series and WIP310 IP Phone Administration Guide 213
B
SIP Timer Values (sec)
Parameter Description
SIP T1 RFC 3261 T1 value (RTT estimate), which can range
from 0 to 64 seconds. Defaults to .5 seconds.
SIP T2 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.
SIP T4 RFC 3261 T4 value (maximum duration a message
remains in the network), which can range from 0 to 64
seconds. Defaults to 5 seconds.
SIP Timer B INVITE time-out value, which can range from 0 to 64
seconds. Defaults to 16 seconds.
SIP Timer F Non-INVITE time-out value, which can range from 0 to
64 seconds.Defaults to 16 seconds.
SIP Timer H INVITE final response, time-out value, which can range
from 0 to 64 seconds.Defaults to 16 seconds.
SIP Timer D ACK hang-around time, which can range from 0 to 64
seconds. Defaults to 16 seconds.
SIP Timer J Non-INVITE response hang-around time, which can
range from 0 to 64 seconds. Defaults to 16 seconds.
INVITE Expires 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 Expires 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
Reg Min Expires 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.

Cisco SPA 501G Specifications

General

Brand	Cisco
Model	SPA 501G
Category	IP Phone
Language	English