SIP IP Phone Models 480i, 480i CT, 9112i, 9133i Release Notes
New Features in 1.4.1
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 – | Aastra Web UI | Advanced |
sip registration renewal timer |
| Advanced SIP Settings |
Registration Renewal Timer | Configuration Files | aastra.cfg, <mac>.cfg |
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(in Web UI) |
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Description | The length of time, in seconds, that the phone renews registrations. | |
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Format | Integer |
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Default Value | 15 |
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Range | 0 to 214748364 |
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| The value set for this parameter should be between 0 and the value set | |
| for the registration period. | |
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Example | sip registration renewal timer: 10 | |
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7 |