Aastra 9143i Series Administrator's Manual page 274

IP Phone Administrator Guide
Global SIP Settings
Aastra Web UI
Step Action
2 Enable the "Explicit MWI Subscription" field by checking the check box.
(Disable this field by unchecking the check box. Default is disabled).
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.
3 If you enable the "Explicit MWI Subscription" field, then in the "Explicit MWI Subscription Period"
field, enter the requested duration, in seconds, before the MWI subscription times out. The phone
re-subscribes to MWI before the subscription period ends. Default is 86400.
4 Enable the "MWI for BLA Account" to enable or disable a BLA configured line to send an MWI
SUBSCRIBE message for the BLA account.
Notes:
1. If you change the setting on this parameter, you must reboot the phone for it to take affect.
2. Both the "sip explicit mwi subscription" and "sip mwi for bla account" parameters must be enabled
in order for the MWI subscription for BLA to occur.
3. The MWI re-subscription for the BLA account uses the value set for the "sip explicit mwi
subscription period" parameter to re-subscribe.
4. Whether or not the "sip mwi for bla account" parameter is enabled, the priority for displaying MWI
does not change.
5 Enable the "Missed Call Summary Subscription" field by checking the check box.
(Disable this field by unchecking the check box. Default is disabled).
This feature allows missed calls that have been redirected by the server, to be incremented in the
missed calls indicator on the phone it was initially directed to.
For more information about this feature, see Chapter 6, the section,
Subscription" on
Note: The "Missed Call Summary Subscription" feature is configurable on a global or per-line basis.
6 If you enable the "Missed Call Summary Subscription" field, then in the "Missed Call Summary
Subscription Period" field, enter the amount of time, in seconds, that the phone uses the Missed
Calls Summary Subscription feature. Default is 86400.
For more information about this feature, see Chapter 6, the section,
Subscription" on
Note: The "Missed Call Summary Subscription Period" is configurable on a global basis only.
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page 6-13.
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"Missed Call Summary
"Missed Call Summary
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