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user to send a Real Time Transport Protocol (RTP) stream to the pre-configured
multicast address without involving SIP signaling. You can also configure the phone to
receive an RTP stream from pre-configured multicast listening address without involving
SIP signaling. You can specify up to 10 multicast listening addresses.
9.3 Message
9.3.1
MWI
(
Message Waiting Indicator
)
If the service of the lines supports voice message feature, when the user is not available
to answer the call, the caller can leave a voice message on the server to the user.
The user will be notified of the server voice message and the status of the power lamp.
Picture 10 - New Voice Message Notification
To listen to a voice message, the user must first configure the voicemail number. After
the voicemail number is configured, the user can retrieve the voicemail of the default
line.