AT&T System 85 manual Isdn 8520T Voice/Data Terminal, Applications

ISDN 8510T Voice/Data Terminal

ISDN 8520T Voice/Data Terminal

The 8520T voice/data terminal is used with the Integrated Services Digital Network (ISDN) com- munication system through a 4-wire ‘‘T’’-interface. The 8520T voice/data terminal offers the fol- lowing: 20 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, improved acoustic quality with the K-type handset, an Adjunct jack for adjunct equipment, and touch-tone dialing. Ten softkeys and four display control buttons located on either side of the 7-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 personalized ringing pattern for the voice/data ter- minal.

Applications

The 8520T voice/data terminal can be used with the DEFINITY G2 and G3. It can be used as a voice terminal or a data terminal.

Physical Description

Dimensions

Note: The dimensions given here for the 8520T voice/data terminal are approximate.

Width = 11 1/2 inches

Depth (front to back) = 10 1/4 inches

Height (maximum with handset in place) = 5 3/8 inches

Nine Fixed Features

CONF button

DROP button

TRANSFER button

HOLD button

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