Comdial DSU II User Manual page 98

Glossary
Tracker Pager
The Tracker optional pager system allows you to send and receive messages to
Tracker pagers assigned to station extension numbers.
TRNS/CONF
A fixed feature button that allows you to transfer outside calls and set up conference
calls.
U
Unscreened Call Transfer
Allows users to transfer line or intercom calls from one station or group to another
without first announcing them.
Unsupervised Conference
After a establishing a conference between two outside parties, the originator drops
out leaving a line to line unsupervised connection with the remaining parties.
V
Voice call
A verbal intercom call.
Voice Announce Blocking (VAB)
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.
90 LCD Speakerphone Station User's Guide
GCA70-281