AT&T System 85 Telephone User Manual


 
ISDN 8510T Voice/Data Terminal
ISDN 8510T Voice/Data Terminal
The 8510T voice/data terminal is used with the Integrated Services Digital Network (ISDN) com-
munication system through a 4-wire ‘‘T’’-interface. The 8510T voice/data terminal offers the fol-
lowing: 10 call appearance/feature buttons, each with a red and green status light, buttons for the
Mute, Redial, Conference, Drop, Transfer, and Hold features (the MUTE, SPEAKER, CONF, and
TRANSFER buttons have a red light next to them), a Speakerphone which can also be optioned
as a listen-only Speaker, a Volume control, the K-type handset which offers improved acoustic
quality, an Adjunct jack for adjunct equipment, and touch-tone dialing. Four softkeys (the keys
with arrows printed on them) and four display control buttons located below a 2-line by
24-character liquid crystal display can be used to access such features as a personal Directory, a
Call Log which lists the most recent incoming and outgoing calls, the Self-Test feature, and a per-
sonalized ringing pattern for the terminal.
Applications
The 8510T voice/data terminal can be used with the DEFINITY G2 and G3. It can be used as a
voice terminal, data terminal, or a video phone. For the last two applications, you will need to
install a special (data or video) board in the 8510T voice terminal.
Physical Description
Dimensions
Note: The dimensions given here for the 8510T voice/data 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
3-417