Configuring Sip Timer Values - Cisco SPA942 - - IP Phone Administration Manual

Configuring SIP, SPCP, and NAT
Configuring SIP
STEP 1
STEP 2
STEP 3
STEP 4
Cisco SPA and Wireless IP Phone Administration Guide

Configuring SIP Timer Values

To configure SIP timer values:
Log in to the web administration interface.
Click Admin Login and advanced.
Click the SIP tab.
Under SIP Timer Values, make the necessary configuration changes to the fields
shown in the following table and click Submit All Changes.
Parameter
SIP T1
SIP T2
SIP T4
SIP Timer B
SIP Timer F
SIP Timer H
Description
RFC 3261 T1 value (RTT estimate). Ranges from 0 to 64 seconds.
Defaults to .5 seconds.
RFC 3261 T2 value, which is the maximum retransmit interval for
non-INVITE requests and INVITE responses. Ranges from 0 to 64
seconds.
Defaults to 4 seconds.
RFC 3261 T4 value, which is the maximum duration a message
remains in the network. Ranges from 0 to 64 seconds.
Defaults to 5 seconds.
RFC 3261 INVITE transaction time-out value. Ranges from 0 to 64
seconds.
Defaults to 16 seconds.
RFC 3261 Non-INVITE transaction time-out value. Ranges from 0
to 64 seconds.
Defaults to 16 seconds.
RFC 3261 INVITE final response time-out value for ACK receipt.
Ranges from 0 to 64 seconds.
Defaults to 16 seconds.
5
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