Avaya Communication Manager Administrator's Manual page 567

7403D telephone
The 7403D is a multi-appearance digital telephone which has 10 buttons available for line appearances,
one-touch feature access, or Speed Dialing. In addition, the 7403D telephone 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.
7404D telephone
The 7404D is a multi-appearance digital telephone which provides simultaneous voice/asynchronous
data transmission. All the transmission is done over the same two pairs of wire.
7405D telephone
The 7405D telephone is a multi-appearance digital telephone which allows features to be added as the
user needs them. The Digital Display can be added to provide access to the Message Center. A Digital
Terminal Data Module or 7400B can be added to enable the user of a 7405D telephone to transmit or
receive data with an associated data terminal.
The basic 7405D provides 10 call appearance/feature buttons with lights that can be assigned to call
appearances or system features. It has 24 programmable feature buttons and six fixed-feature buttons.
The 7405D can also have a function key module which adds 24 feature buttons and a call coverage
module (when no display module is used) which adds 20 call appearance/feature buttons.
7406 telephones
The 7406D telephone (7406D01A, 7406D02A, 7406D03A, and 7406D04A models) has five call
appearance/feature buttons, each with a red in-use light and a green status light, seven shiftable (2-level)
programmable feature buttons with no lights, four programmable feature buttons with a green light, four
fixed feature buttons (CONFERENCE, TRANSFER, DROP, and HOLD), a SHIFT button with a green
light, a SPEAKER button, and a green Message light.
The 7406BIS telephone (7406D05A and 7406D06A models) has five call appearance/feature buttons,
each with a red in-use light and a green status light, seven shiftable (2-level) programmable buttons with
no lights, two programmable feature buttons with a green light, four fixed feature buttons
(CONFERENCE, TRANSFER, DROP, and HOLD), a SHIFT button with a green light, a SPEAKER
button with a green light, a MUTE button with a red light, a SPEAKER VOLUME "arrow" button, and a
red Message light.
The 7406+ telephone (7406D07A and 7406D08A models) 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.
Administrator's Guide for Avaya Communication Manager
November 2003
Phone Reference
7400-series telephones
567