Instruction manual

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Centrex or PBX operation support—including one-touch dialing of feature

access codes on system phones.

Power failure operation with standard phones, allowing you to make and

receive calls during a power failure while retaining programmed

equipment settings for up to four days. (An optional Uninterruptible

Power Supply, or UPS, is also available to allow full equipment operation

during a power failure.)

Two system programming extensions, allowing you to program the

system from one extension without interrupting call activity at the other

programming extension—usually the receptionist’s extension.

Optional equipment support, including doorphones, hotline phones,

answering machines, loudspeaker paging systems, music on hold*, call

reporting (often referred to as Station Message Detail Recording or

SMDR) devices, PARTNER Attendants, and extra alerts.

PARTNER MAIL™ functionally integrated into the PARTNER

system,

allowing immediate or delayed call handling so callers can reach a

desired extension or group without operator assistance and leave

messages at unanswered or busy extensions.

System Components

Modular hardware design makes the system easy to install and expand. Figure

1-1 shows an example of system components.

Control Unit

The control unit is the heart of the system; it is made up of one or two carriers,

and it houses the system modules. You can use either the primary carrier, or

the primary carrier and the expansion carrier if you need more lines and

extensions. Each carrier housing includes a backplane and a cover. All system

modules slide into the backplane, which channels power to the system. The

cover slides onto the front of the backplane after all the system modules have

been installed.

WARNING:

There are no customer-serviceable components inside the system

modules or backplane. There are hazardous voltages within that can

cause severe or fatal personal injury. DO NOT OPEN THE MODULES.

If you use equipment that rebroadcasts music or other copyrighted materials, you may be required to obtain

a license from a third party such as ASCAP or BMI. Or, you can purchase a Magic on Hold® system from

AT&T, which does not require you to obtain such a license.

1-2

Overview