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Aastra Telecom 41-001343-02 User Manual

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 Operational, Basic, and Advanced Parameters
41-001343-02 REV04 – 05.2014
A-82
Advanced SIP Settings
Parameter – 
sip explicit mwi subscription
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description
If the IP phone has a message waiting subscription with the Service Provider, a Mes-
sage 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 follow-
ing:
"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
Configuration Files
aastra.cfg, <model>.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 - 2147483647
Example
sip explicit mwi subscription period: 30
Parameter – 
sip send mac
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description
Adds an "Aastra-Mac:" header to the SIP REGISTER messages sent from the phone to 
the call server, where the value is the MAC address of the phone.
Format
Boolean
Default Value
0 (disabled)
Range
0 (disabled)
1 (enabled)
Example
sip send mac: 1
Parameter – 
sip send line
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description
Adds an "Aastra-Line:" header to the SIP REGISTER messages sent from the phone to 
the call server, where the value is the line number that is being registered.
Format
Boolean
Default Value
0 (disabled)
Range
0 (disabled)
1 (enabled)
Example
sip send line: 1