Matrix SPARSH VP710, User Manual, Page: 481 / 1046

Matrix SPARSH VP710 User Guide 473
Message Waiting Indicator (MWI)
Message Waiting Indicator (MWI) informs you with the number of unread messages in your mailbox without calling
the mailbox.The IP phone supports both audio and visual MWI when receiving new voice messages. This will be
cleared when you retrieve all voice mails or delete them
MWI is indicated in three ways:
• A warning tone
• An indicator message (including a voice mail icon) on the touch screen
• Power indicator LED slowly flashing red
MWI service is not available on all servers. Contact your system administrator for more information.
The IP phone supports both solicited and unsolicited MWI.
Unsolicited MWI: It is a server related feature. The IP phone sends a SUBSCRIBE message to the server for the
message-summary updates. The server sends a message-summary NOTIFY within the subscription dialog each
time the MWI status changes.
Solicited MWI: For this you must enable MWI subscription feature on the IP phone. The IP phone supports
subscribing the MWI messages to the account or the voice mail number.
.
The MWI Subscription parameters you need to know:
• The IP phone will send SUBSCRIBE messages for MWI service to the account or the voice number
MWI service depending on the server. Contact your system administrator for more information.
• MWI subscription is configurable via web user interface only.
Option Description
Subscribe for MWI Enable or disable a subscription for MWI service.
MWI Subscription Period
Period of MWI subscription. The IP phone sends a refresh
SUBSCRIBE request before initial subscription expires.
Subscribe MWI to Voice Mail
Enable or disable a subscription to the voice mail number for MWI
service.To use this feature, you should also configure the voice mail
number.