Toshiba STRATA DK24 Manual page 525

GENERAL INFORMATION
Toshiba digital telephones can access a wide range of useful
features. This user guide provides brief, step-by-step instruc-
tions for each of these features, which are activated by access
codes or feature buttons. It is possible that your digital telephone
cannot access all of the listed features; this is because feature
accessibility is assigned on a phone-by-phone basis in system
programming.
Each digital telephone includes a dialpad, 26 feature buttons,
and volume control up-and-down buttons. The feature buttons
on each side of the dialpad are fixed, and their functions cannot
be changed. The feature buttons above the dialpad are flexible
and can be changed in programming.
All of the flexible feature buttons and some of the fixed feature
buttons have LEDs. These LEDs indicate call status by their color
and flash rate. Activated LEDs can be one of two colors, red or
green. If a station user makes or receives a CO line or intercom
call, the intercom or appropriate CO line LED on the telephone
will be green. If a common CO line is accessed, the line's LED will
be red at the stations not on the line. If a feature button is
activated, its LED will be red.
This guide also contains a section on the Centrex Application,
which enhances the system feature capability when installed
behind a Centrex or PBX system.
NOTE:
Wherever a CO line is indicated, it can also be a Centrex
and/or PBX line.
IMPORTANT!
Some of the features listed in this guide may not
appear on your telephone due to hardware
configuration or programming.