Applications; Physical Description - AT&T Callmaster Series Reference Manual

The 7403D is a multi-appearance digital voice terminal which has 10 buttons available for line
appearances, one-touch feature access, or Speed Dialing. In addition, the 7403D voice terminal
may be equipped with a Digital Terminal Data Module (DTDM) which attaches to the right side
and allows the connection of a EIA RS-232C data terminal. The 7403D voice terminal has been
discontinued.

Applications

The 7403D voice terminal can be used with the DEFINITY G1, G2, G3, System 75, and System
85. This voice terminal is especially suitable for managers, executive secretaries, and office sup-
port personnel. When equipped with a DTDM or 7400B, it is also suitable for users who have
data terminals.

Physical Description

Dimensions
Note: The following dimensions for the 7403D voice terminal are approximate.
Width = 7 inches
Depth (front to back) = 8-3/4 inches
Height (maximum with handset in place) = 5-1/2 inches
Thickness of housing = 1-1/2 inches
Features
Six Fixed Feature Buttons
RECALL button
DISCONNECT button
CONFERENCE button
7403D Voice Terminal
7402 Plus Voice Terminal
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