Isdn Telephones (7500S & 8500S) - Avaya Communication Manager Administrator's Manual

Telephone Reference
ISDN telephones (7500s & 8500s)
The Integrated Services Digital Network (ISDN) phones include both the 7500-series and the
8500-series telephones. Each of these phones uses the ISDN communications through a 4-wire
"T"-interface.
National ISDN (NI-1 and NI-2) BRI telephones
Phones that comply with National ISDN (NI-1 and NI-2) BRI standards may serve as phones on
a Communication Manager system if they are programmed in Call Appearance Call Handling -
Electronic Key Telephone Service (CACH-EKTS) mode. Examples of NI-BRI phones that are
supported are:
Nortel 5317T
●
L3 STE
●
6210 and 6220 Tone Commander
●
NI-BRI phones with Communication Manager offer multiple call appearances, the Conference,
Transfer, Hold, and Drop feature buttons, and a Message Waiting Indicator. NI-BRI telephone
users must access all other features of Communication Manager using feature access codes.
Additional feature buttons on an NI-BRI telephone may be assigned only as call appearances,
and the number of call appearance buttons administered in Communication Manager must
match the number of call appearances administered on the telephone. Bridged call
appearances are not supported.
NI-BRI phones also have access to all features of the Multi-level Precedence and Preemption
(MLPP) capability if MLPP has been enabled.
7505D ISDN-BRI telephone
The 7505D telephone serves as a telephone if it is equipped with a Voice Only Module (VOM).
As a telephone, it offers programmable buttons, fixed feature buttons, a Message light,
touch-tone dialing, and a built-in, programmable speakerphone or SPOKESMAN loudspeaker.
The 7505 can be equipped with an optional Asynchronous Data Module (ADM) that provides
the user with simultaneous voice and data capabilities. The 7505 equipped with the ADM offers
the same voice capabilities as the 7505 equipped with the VOM, plus it allows you to attach
data terminals or personal computers to send and receive data through the digital network.
638 Administrator Guide for Avaya Communication Manager