Comdial DSU and DSU II System Reference Manual page 120

Glossary GCA70–245
Subdued off-hook voice announce: A private announcement that can
be made to a busy party which they hear through the receiver of their
handset.
Speed dialing: Autodialing using the keypad buttons. Speed dialing can
be station calls (personal and accessed by only one specific user) or
system calls (numbers used and accessed by anyone in the system).
System Alarm Reporting: Allows you to view (through the LCD
telephone screen) the various system alarms and the stations with which
those alarms are associated.
T
TAP: Depending on your system's programming, this button gives you a
fresh dial tone or activates a hookflash.
Tone call: A ringing intercom call.
Tracker: The Tracker optional pager system allows you to send and
receive messages to Tracker pagers assigned to station extension
numbers.
TRNS/CNF: A fixed feature button that allows you to transfer outside
calls and set up conference calls.
V
Voice call: A verbal intercom call.
Voice announce blocking: A telephone can be set to block voice calls
sent to it over the speaker.
Z
Zone paging: Paging through the intercoms of some stations or
departments in the system.
G–4 LCD Speakerphone Reference Manual