VTech VSP600 Administrator And Provisioning Manual page 20

Voicemail Settings
Setting
Enable MWI Subscription
Mailbox ID
Expiration (secs)
Ignore unsolicited MWI
VSP600/VSP601 Administrator and Provisioning Manual
Description
When enabled, the account subscribes to the "message
summary" event package. The account may use the User
ID or the service provider's "Mailbox ID".
Enter the URI for the mailbox ID. The base station uses this
URI for the MWI subscription. If left blank, the User ID is
used for the MWI subscription.
Enter the MWI subscription expiry time (in seconds) for
account x.
When selected, unsolicited MWI notifications—notifications
in addition to, or instead of SUBSCRIBE and NOTIFY
methods—are ignored for account x.
Disable this setting if:
 MWI service does not involve a subscription to a
voicemail server. That is, the server supports unsolicited
MWI notifications.
 you want the handset LCD to indicate new messages
when the base station receives unsolicited MWI
notifications.
20 WebUI: System