Sip Timers; Sip Registration Renewal Timer - Aastra 480I Release Notes

SIP Timers

The following paragraphs describe SIP timers that have been added or changed in
Release 1.4.1.

SIP Registration Renewal Timer

A new parameter has been added to the IP phones that enables an administrator to
control when registration renewals occur. The new parameter sip registration
renewal timer specifies the length of time, in seconds, before the expiration of an
existing registration, that the registration is renewed. For example, if the value is
set to 20, then 20 seconds before the registration is due to expire, a new
REGISTER message is sent to the registrar to renew the registration.
The parameter may be set via the configuration files and the Aastra Web UI.
Configuring via the Configuration Files
You use the following parameter in the configuration files to control when the
phone renews SIP registration:
Parameter –
sip registration renewal timer
Registration Renewal Timer
(in Web UI)
Description
Format
Default Value
Range
Example
41-001024-00, Rev 09, Release 1.4.1
SIP IP Phone Models 480i, 480i CT, 9112i, 9133i Release Notes
Aastra Web UI
Configuration Files
The length of time, in seconds, that the phone renews registrations.
Integer
15
0 to 214748364
The value set for this parameter should be between 0 and the value set
for the registration period.
sip registration renewal timer: 10
Advanced Settings->Global SIP->
Advanced SIP Settings
aastra.cfg, <mac>.cfg
New Features in 1.4.1
7