Specifications

The 7400 Series Voice Terminals
11-48 Issue 11 December 1999
Call Appearance/Feature Buttons
The 7406D, 7406BIS, and 7406 Plus voice terminals have five call
appearance/feature buttons.
One-level Feature-only and Two-level Feature-only Buttons
The 7406D (7406D01A—7406D04A) voice terminals have three buttons that can
be used for one feature each, with a green light, and seven double-level feature
buttons without lights. There is also a Select Ring/Feature button with the Select
Ring option on the top level; another feature can be administered on the bottom
level.
The 7406BIS (7406D05A and 7406D06A) voice terminals have one single-level
feature button with a green light and seven double-level feature buttons without
lights. There is also a Select Ring/Feature button with the Select Ring option on
the top level; another feature can be administered on the bottom level.
The 7406 Plus (7406D07A and 7406D08A) voice terminals have three
double-level feature buttons, each with a green light. These voice terminals also
have six double-level feature buttons without lights.
Speakerphone (on 7406BIS and 7406 Plus)
The 7406BIS and 7406 Plus (7406D05A—7406D08A) voice terminals are
equipped with a built-in speakerphone. The Speakerphone capability allows a
user to engage in a hands-free conversation with the far-end party. The
speakerphone can be turned off or on (on the 7406BIS voice terminal, use the
SPEAKER button; on the 7406 Plus voice terminal, use the SPEAKER/RESET
SPKR button), can be muted (use the MUTE button), and the volume can be
raised and lowered (use the Volume “arrow” button).
The Speakerphone feature on the 7406 Plus also allows the user to adjust the
speakerphone for optimal performance. By pressing the SELECT button and then
the SPEAKER/RESET SPKR button (if the voice terminal is set for the
Speakerphone feature), the user hears a set of tones as the speakerphone
performs an acoustic test of the environment. When the tones stop, the
speakerphone has finished adjusting itself and is ready for use. The user must
reset the speakerphone in any one of three instances: whenever the voice
terminal is moved to another place (even in the same room), whenever the green
light next to the SPEAKER/RESET SPKR button is fluttering, and, when, in the
unlikely event, the speakerphone is making a squealing sound.
On the 7406D voice terminals, the volume control for the speaker is a sliding
control also used for the tone ringer volume. On the 7406BIS voice terminal, the
volume control button is labeled SPEAKER VOLUME and double arrows, one for
raising the volume level and one for lowering the volume; on the 7406 Plus voice
terminal, the volume control button is labeled with the word VOLUME and the
double arrows for raising and lowering the volume.