Lucent Technologies MERLIN Plus Release 2 System Manual page 14

The BIS-34D Voice Terminal with Display allows you to make and receive
outside and intercom calls without lifting the handset. There are two columns of
five buttons above the dial pad for incoming lines, auto intercom, and
programmable features and two columns of 12 buttons to the right for
programmable features. The dual lights next to each button indicate the status of
the selected features and lines. The display, located in the top portion of the
voice terminal, offers a variety of visual aids for most features.
BIS 34D
5-Button Voice Terminal
The 5-button voice terminal has one column of five buttons (an Intercom button
and four additional buttons above the dial pad) that you can use for outside lines
and/or programmable features.
5-Button
10-Button Voice Terminals
The 10-Button Voice Terminal has two columns of five buttons
(an Intercom button and nine additional buttons above the dial pad) for outside
lines and programmable features.
10-Button
The 10-Button (HFAI-10) Voice Terminal has a built-in speaker that allows you
to answer intercom calls without lifting the handset. It also has two columns of
five buttons (an Intercom button and nine additional buttons above the dial pad)
for outside lines and programmable features.
HFAI-10
The MERLIN Plus Communications System 1-9