Aastra Telecom 480I Explicit Message Waiting Indicator MWI Subscription Period, Range Example

SIP IP Phone Models 480i, 480i CT, 9112i, 9133i Release Notes

New Features in 1.4.1

Explicit Message Waiting Indicator (MWI) Subscription Period

The IP phones support a new feature for MWI that allows the administrator to set a requested duration, in seconds, before an explicit MWI subscription times out. The phone re-subscribes to MWI before the subscription period ends.

The new parameter you can configure is “sip explicit mwi subscription period”. You can configure this parameter using the configuration files or the Aastra Web UI.

Configuring via the Configuration Files

You configure the explicit MWI timeout using the following parameter in the configuration files.

Parameter –	Aastra Web UI	Advanced Settings->Global SIP->
sip explicit mwi subscription		Advanced SIP Settings
period	Configuration Files	aastra.cfg, <mac>.cfg
Explicit MWI Timeout
(in Web UI)
Description	The requested duration, in seconds, before the MWI subscription times
	out. The phone re-subscribes to MWI before the subscription period
	ends.
Format	Integer
Default Value	86400
Range	30 - 214748364
Example	sip explicit mwi timeout: 30

41-001024-00, Rev 09, Release 1.4.1 11