Administrator's Guide

Off-Premises Station

Issue 5 October 2002 1789555-233-506

Off-Premises Station

Off-Premises Station allows a phone located outside of the building where the

switch is located to be connected to the system. If CO trunk circuits are used, the

voice terminal must be analog and must be FCC-registered or, outside the US,

registered by the appropriate governmental agency. Digital communications

protocol (DCP) sets can be used as off-premises terminals with the addition of the

DEFINITY extender. IP stations can be set up off-premises using PPP

connections. DS1 trunk service provides a digital interface for off-premises

stations (also known as station-side DS1).

Off-premises stations are useful when it is necessary to have a voice terminal

located away from the main location. The maximum loop distance for analog

off-premises stations is 20,000 feet (6093.34 meters) without repeaters. For

cabling distance information for the various voice terminal types, see the user

guide for the appropriate telephone.

Detailed description

Off-Premises Station requires cross-connecting capabilities and one port on a

Analog Line or DS1 Tie Trunk circuit pack for each interface to be provided. Not

all analog lines can support an off-premises station. For information about user

guide for the appropriate telephone.

NOTE:

The use of a message waiting indicator lamp on an off-premises station is

not supported.

Interactions

The Distinctive Ringing feature might function improperly at an off-premises

station due to the distance. However, the Distinctive Ringing feature can be

disabled when the Off-Premises Station field is administered. If the Distinctive

Ringing feature is not used with an off-premises station, the terminal receives

1-burst ringing for all calls.