Instruction manual

Standard Telephones

You can also use industy-standard single-line rotary or touch-tone telephones,

including feature phones with built-in feature buttons and lights, with the system.

This guide refers to such telephones as standard phones. AT&T-certified

standard phones, such as the 8110, are recommended. “Industry-Standard

Devices” in the following section provides more information on standard phones.

Auxiliary Equipment

You can connect many types of telecommunications devices to your system

without expensive adapters or additional phone lines.

Industry-Standard Devices

Many industry-standard, single-line devices will work with the system regardless

of the manufacturer:

Touch-tone, rotary, and cordless telephones (such as those you might

have in your home)

■

Fax machines

Answering machines

Modems

Credit card scanners

Requirements

An industry-standard device must meet the following conditions:

■

It must be non-proprietary. That is, it cannot be made specifically for use

on a particular telephone system. (For example, you cannot connect an

AT&T MERLIN® phone because it is specifically designed for use on a

MERLIN system.)

Its Ringer Equivalence Number (REN*) cannot be greater than 2.0. (The

REN is shown on a label on the device, usually on the bottom.)

You can connect a multiple-line device to the system, but for best results

it should be installed and used as if it were a single-line device.

Connecting and Using Standard Devices

You can connect a standard device so that it is on an extension by itself, or so

that it shares an extension with another piece of equipment (either another

standard device or a system phone) as long as the REN of the two devices

together does not exceed 2.0. For example, you can connect a standard phone

and an answering machine to the same extension. An extension with two

devices connected to it is called a combination extension. The PARTNER

Communications System Installation guide provides installation instructions.

REN is a measure of the power it takes to ring a phone. The typical home phone line handles 4.0–5.0 RENs;

each extension jack in your system handles up to 2.0 RENs.

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Overview