User Guide for the SIP-T40P IP Phone
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The LCD screen displays the amount of new and old voice mails.
2.
Select an account and then press the
Connect
soft key to listen to voice mails.
Message Waiting Indicator (MWI)
The SIP-T40P IP phone supports MWI when receiving a new voice message. If someone leaves
you a voice mail, you will receive a message waiting indicator. MWI will be indicated in three
ways: a warning tone, an indicator message (including a voice mail icon) on the LCD screen, and
the power indicator LED slowly flashes red. This will be cleared when you retrieve all voice mails
or delete them.
The MWI service is unsolicited for some servers, so the SIP-T40P IP phone only handles the MWI
messages sent from the server. But for other servers, the MWI service is solicited, so the
SIP-T40P IP phone must enable subscription for MWI.
Note
The MWI subscription parameters you need to know:
Options
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 SUBSCRIBE expiration.
Subscribe MWI To Voice
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.
Note
To configure subscribe for MWI via web user interface:
1.
Click on
Account
->
Advanced
.
MWI service is not available on all servers. Contact your system administrator for more
information.
The phone will send SUBSCRIBE messages for the MWI service to the account or the voice
number MWI service depending on the server. Contact your system administrator for more
information.
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