Aastra 480i Administrator's Manual page 347

Configuration Parameters
Operational, Basic, and Advanced Parameters
Parameter –
sip registration timeout retry
timer
Registration Timeout Retry
Timer
(in Web UI)
Description
Format
Default Value
Range
Example
Parameter –
sip registration renewal timer
Registration Renewal Timer
(in Web UI)
Description
Format
Default Value
Range
Example
41-001129-00 Rev 09, Release 1.4.1
DFW Phone 972-992-4600
Aastra Web UI Advanced Settings->Global SIP->
Advanced SIP Settings
Configuration Files aastra.cfg, <mac>.cfg
Specifies the length of time, in seconds, that the phone waits until it
re-attempts to register after a REGISTER message times out.
If this parameter is set lower than 30 seconds, the phone uses a
minimum timer of 30 seconds.
Integer
120
30 to 214748364
sip registration timeout retry timer: 150
Aastra Web UI Advanced Settings->Global SIP->
Advanced SIP Settings
Configuration Files aastra.cfg, <mac>.cfg
The length of time, in seconds, prior to expiration, that the phone renews
registrations.
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.
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
A-57