The DEFINITY AUDIX system provides subscribers with two
different methods of informing them that new messages exist
in their voice mailboxes. The following methods are referred
to as the Message-Waiting Indicator (MWI) feature.
Business Phone Systems
For subscribers who have telephones with message-waiting
lamps, the lamp lights automatically when new DEFINITY
AUDIX messages are received. When the last new message
or header in the incoming section of a voice mailbox is
heard, the message-waiting lamp goes out. The only exception
is when a message is retained in the new category using
the Untouched Message feature (for more information, see
the Untouched Message feature). The message-waiting
lamp is also used for message services other than the
DEFINITY AUDIX system (see the Leave Word Calling (CL
Mode Only) feature).
Some voice terminals include display screens that serve as
MWIs (see Considerations on the next page).
If no MWI is available via the
switch, the Outcalling feature can
always be used as a substitute
(for more information, see the Outcalling
For systems installed using the
digital port switch integration
method, the Leave Word Calling
(LWC) switch feature must be
enabled for DEFINITY AUDIX
ports (the LWC feature is used to
activate MWIs for those systems).
DEFINITY AUDIX systems set up in display set (DS) integration mode rely on the
Leave Word Calling switch feature to turn on MWIs. Those installed using the
control link integration method employ an independent mechanism for controlling
the MWIs. Thus, the following important note applies to DS systems only.
Telephones with built-in displays indicate when DEFINITY AUDIX
messages have been received by displaying “AUDIX”. For a system in DS
mode, the number shown next to the AUDIX display does not indicate the
number of messages waiting. Rather, it indicates the number of times MWI
activation requests have been sent by the system. Thus, without telling
how many, display phone sets only show that at least one message is
waiting. The only advantage of a display set is that it differentiates
between DEFINITY AUDIX messages and other types of messages.
DEFINITY AUDIX systems set up in control link (CL) switch integration mode offer
fully integrated messaging. This means that messages generated by other
messaging systems on the switch are detected by the DEFINITY AUDIX system
and presented to the recipient much the same as are voice messages. Systems
set up in DS integration mode do not offer integrated messaging. Thus, the
following important note applies to systems in DS mode only.
If LWC is enabled for subscribers, active MWIs may indicate the presence
of LWC messages, which cannot be retrieved through the DEFINITY
AUDIX system. If a message-waiting lamp remains lit after a subscriber
retrieves DEFINITY AUDIX messages, the subscriber must exit the
DEFINITY AUDIX system and retrieve the LWC messages by other means.
Only then will the MWI be deactivated.
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