Installing Telephones and Adjuncts

General Purpose Adapter (GPA)

A GPA permits the attachment of 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.

NOTE:

The GPA is intended for answer-only service. It does not have touch-tone receivers or pulse dial detectors; therefore, calls must be dialed by using the associated analog multiline telephone.

When the system forms indicate a GPA for installation of any adjunct, follow this procedure:

1.Plug one end of a 4-pair cord into the VT jack on the back of the GPA.

2.Plug the other end into the OTHER jack on the underside of the analog multiline telephone.

3.Plug the cord from the adjunct into the TEL EQUIP jack on the GPA.

4.Slide the switch on the back of the GPA to the setting that provides the GPA service required:

Basic. This setting is used to dial and answer calls from an analog multiline telephone or to attach a T/R adjunct such as a single-line telephone, answering machine, or fax machine. Incoming calls ring only on the analog multiline telephone. This setting also allows the user to originate and ‘receive calls on the telephone while using a computer or modem that is attached to the GPA. This is called simultaneous voice and data.

Join. This setting is used to add a recording device or a single-line telephone to a call that is in progress on the telephone. You cannot originate or answer calls on this setting.

Installing Adjuncts 3-15

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AT&T Release 2.0 manual General Purpose Adapter GPA