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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
ISDN Voice Terminals
17-21The ISDN 8503 Voice Terminal
17
The 8503T voice terminal is a non-modular set used with the ISDN
communication system through a 4-wire “T”-interface. This voice terminal offers
the following: four standard fixed feature buttons, a Message light, three call
appearance/flexible feature buttons, each with a red and green light, 12
programmable memory-dialing locations on the dial pad keys, a PROGRAM
button for storing numbers at the memory-dialing locations and a MEMORY
button for dialing these programmed numbers or codes, the Redial feature, the
Mute feature, eight possible personalized ringing patterns selected with the Select
Ring feature, high fidelity audio capabilities (bandwidth from.3 to 3.8 kHz) with the
K-type handset, and touch-tone dialing. This set does not provide data
capabilities.
Applications
The 8503T voice terminal can be used with the DEFINITY Communications
System Generic 2 and Generic 3, and the DEFINITY ECS. Typical applications of
the 8503T voice terminal are users handling a low volume of voice-only calls, staff
workers and lower level managers, as well as lobbies and conference rooms.
Physical Description
Dimensions
NOTE:
The dimensions given here for the 8503T voice terminal are approximate.
Width = 7-3/4 inches
Depth (front to back) = 9-1/2 inches
Height (maximum with handset in place)
The desk-mounted model = 5-1/4 inches
The wall-mounted model = 4-1/2 inches
Features
Four Standard Fixed Features
■ CONF/RING button
■ DROP/TEST button
■ TRANSFER/PAUSE button
■ HOLD button