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MERLIN LEGEND Communications System Release 5.0
System Manager’s Guide
555-650-118
Issue 1
June 1997
System Components
Page 3-6Control Unit
3
analog multiline telephone and a modem or other adjunct at the same location in
the system and give each one its own extension number, you must use
two
physical extension jacks on the module.
The Voice Announce to Busy feature, which allows a telephone user to hear a
voice page
(also called a
voice-announced call
) while on another call, has the
same requirements as an adjunct that operates independently from the phone:
one extension jack (and no adjunct) for an MLX phone; two extension jacks for an
analog multiline telephone. Single-line telephones and cordless or wireless
telephones (which are analog multiline telephones) cannot receive voice pages.
NOTE:
There is a distinction between an extension jack (sometimes referred to as
a
logical ID
or
port
) and an extension number. In system programming, you
sometimes need to use port/jack/logical ID numbers rather than extension
numbers or system line/trunk numbers. Port/jack/logical IDs are numbered,
starting at 1, from the bottom of a module, and are fixed: they cannot be
changed. The extension and line/trunk numbers that people in the system
dial are flexible and can be programmed
.
Touch-Tone Receivers 3
In addition to jacks for connecting lines/trunks and extensions, various modules
also include components called
touch-tone receivers
(
TTRs
). These TTRs allow
the system to process touch tones entered by outside callers for special purposes,
such as automated attendants that answer calls from people with touch-tone
phones, voice mail systems, and remote access callers who call into the system
and use its services. When your Lucent Technologies representative helps plan
your system, he or she makes sure that your modules have enough touch-tone
receivers to support your needs. When you add an application or adjunct to your
system, you sometimes have to make more TTRs available as well. For
information about adding TTRs, see the
Equipment and Operations Reference
(last updated for Release 3.0)
.
016, 012, and 008 OPT Modules 3
Extension modules that support single-line telephones or off-premises telephones
(OPTs) must have ring generators so that the phones get electrical current for
their ringers. All 016 extension modules, which are compatible only with Release
4.0 and later systems, include built-in ring generators. Since late in 1993, 012 and
008 modules have come with ring generators built in. Earlier modules required
Lucent Technologies technicians to install ring generators. If your 008 or 012
module has a ring generator, either added or built-in, you should see a label on
the front of the module telling you that the ring generator is included.
Also, 016, 012, and 008 modules allow the connection of T/R devices directly to
the control unit, without the need for a telephone and adapter at an extension.
You can use them to hook up fax machines or PCs with modems, for example.
For more information, see ‘‘
Adjuncts’’ on page 3-35.