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7406D, 7406BIS, and 7406 Plus Voice Terminals
The 7406 Plus (which includes the 7406D07A and 7406D08A versions)— are the newest 7406
sets. The 7406 Plus voice terminal has five call appearance/feature buttons, each with a red in-
use light and a green status light, three shiftable (2-level) programmable feature buttons with a
green light, six shiftable (2-level) programmable feature buttons without lights, four fixed feature
buttons (CONFERENCE, TRANSFER, DROP, and HOLD), a SELECT button with a green light,
a SPEAKER/RESET SPKR button with a green light, a MUTE button with a red light, a VOLUME
‘‘arrow’’ button, and a red Message light.
Note: The 7406D01A through 7406D06A are no longer being manufactured. The
7406D08A will be discontinued as of January 1, 1995. Therefore, during 1995, only
the 7406D07A will be generally available.
Applications
The 7406D, 7406BIS, and 7406 Plus voice terminals can be used with the DEFINITY Communi-
cation System, System 75, and System 85. These 7406 digital voice terminals are the least
expensive digital voice terminals with a display that AT&T offers. Typical applications of the
7406D, the 7406BIS, and the 7406 Plus voice terminal are users who have a need for calling
party display capabilities or with data terminals requiring a large number of features.
The 7406D, 7406BIS, and 7406 Plus voice terminals can also provide the user with simultaneous
voice and data communications: The 7406D (7406D01A–7406D04A) are equipped with a data
stand; the 7406BIS (7406D05A and 7406D06A) and the 7406 Plus (7406D07A and 7406D08A)
can be connected to a 7400B Data Module. With the 7406BIS and 7406 Plus voice terminals,
PC platform products can be useful in providing voice capabilities since these screen-based pro-
ducts can greatly enhance the telephone capabilities of these voice terminals.
Physical Features
Dimensions
Note: The following dimensions listed here for the 7406D, 7406BIS, and 7406 Plus voice
terminals are approximate.
Width = 8 1/2 inches
Depth (front to back) = 8 3/4 inches
Height (maximum with handset in place) = 6 1/4 inches
Thickness of housing = 1 1/2 inches
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