AT&T MDC 9000 Installation Manual download pdf (Page 53)

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4 ' .  

As with other tip-ring devices, modems can be attached to station ports on

Partner systems. Because the Partner processor is internally a digitally

switched system, there is some degradation of signal quality. For normal

speech, this is unnoticeable, but modems may not run at full speed. Avaya

recommends bypassing Partner switching for maximum modem performance.

Partner ACS has a modem built-in for remote administration.

44 '  " C . 

Most Partner processors support Music on Hold, generally by an RCA Phono

jack (on Partner Plus, II, Endeavor, and ACS.) Partner Basic requires a

special adapter that plugs into a designated station port.

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AT&T specifies that any phones outside the building in which the processor

is located require special Off Premises protection equipment. These devices

provide surge protection, isolating both phone and processor from electrical

imbalances that often arise when wires leave a building.

Two such devices are available:

0 > – In Range (within 3000 feet), Out of Building, providing just

protection.

  ? – Off Premises Range Extender, providing additional range beyond

3000 feet.

4; ( +  

Door Phones are special phones designed to be installed outside a locked

door; under Partner control, a door can be unlocked at the request of a caller

from the door phone. Avaya’s doorphone mounts flush inside a wall and has

a push-button to announce the caller.

On Partner Plus and II, the system understands doorphone programming, and

allows up to 2 extensions to be so designated. When the button on the

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AT&T MDC 9000 Installation Manual Page 53