Aastra Telecom 57I C53I User Guide

Page of 602
Operational, Basic, and Advanced Parameters
A-58
41-001160-00, Rev 01  Release 2.0  
IP Phone Administrator Guide
Appendix A
Advanced SIP Settings
Parameter – 
sip explicit mwi subscription
Explicit MWI Subscription
(in Web UI)
Aastra Web UI
Advanced Settings->Global SIP->
Advanced SIP Settings
Configuration Files aastra.cfg, <mac>.cfg
Description
If the IP phone has a message waiting subscription with the Service 
Provider, a Message Waiting Indicator (MWI) (LED or display icon) tells 
the user there is a message on the IP Phone. You can enable and 
disable MWI by setting this parameter to the following:
"0" to disable
"1" to enable
Format
Boolean
Default Value
0
Range
0 (disable)
1 (enable)
Example
sip explicit mwi subscription: 1
Parameter – 
sip explicit mwi subscription 
period
Explicit MWI Timeout
(in Web UI)
Aastra Web UI
Advanced Settings->Global SIP->
Advanced SIP Settings
Configuration Files aastra.cfg, <mac>.cfg
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