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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 3-35Adjuncts
3
A qualified service technician sets up your MFMs to work with either an adjunct or
a supplemental alert.
General Purpose Adapter 3
A General Purpose Adapter (GPA) enables you to connect a tip/ring (T/R)
device—such as a single-line telephone, modem, or answering machine—to an
analog multiline telephone. The device must be touch-tone, not rotary, and you
must make calls from the analog multiline telephone, because the GPA has no
pulse or touch-tone detectors.
The switch on the back of the GPA lets you choose one of the following services:
■ Basic. Use this setting to dial and answer calls on an analog multiline
telephone or to attach a T/R device such as a single-line telephone or a fax
machine. Incoming calls ring only on the analog multiline telephone.
■ Join. Use this setting to add a recording device or a single-line telephone
to a call that is in progress on the analog multiline telephone. You cannot
originate or answer calls on this setting.
■ Automatic. When using a GPA set to Automatic, you must lift the handset
before using any feature that automatically turns on the speakerphone.
These features include Authorization Codes, Auto Dial, Last Number Dial,
and Saved Number Dial. You can use this setting in two ways:
— For devices that answer calls, for example, an answering machine or a
modem (you need a programmed Auto Answer All button to allow the
device to answer calls automatically).
— For voice and data, which enables you to make and receive calls on the
telephone when the modem attached to the GPA is busy. You cannot
make or receive a data call while on a voice call.
A GPA is
not
recommended for use with a fax machine. See ‘‘Fax Machines’’ on
page 3-37.
Adjuncts 3
This section describes the adjuncts that you can use with the system. System
adjuncts connect directly to the control unit and serve the whole system.
Telephone adjuncts attach to telephones and serve particular extensions.
System Adjuncts 3
The system adjuncts described in this section connect directly to the control unit
and serve the whole system.