
Glossary
GL-11
System Programming
Procedures that allow you to customize system settings for your business. System Programming 
requires a system display phone and must be done from extension 10 or 11.
System Restore
See 
Restore.
T
Talk-Back
See 
Voice Interrupt On Busy Talk-Back.
Telephone Programming
Procedures that allow you to customize extensions to meet the need s of i ndivi dual u sers, i nclud ing 
the assignment of features to programmable buttons. Telephone Programming can be done either 
centrally or from the user’s own extension. 
See also 
Centralized Telephone Programming 
and
Extension Programming.
U
Unique Line Ringing—Release 3.0 or later
This feature allows a ringing pattern (maximum of eight) to be assigned on a per line basis for 
users to differentiate, by sound, which line is ringing.
V
Verification of Account Codes
See 
Forced Account Code Entry.
VMS (Voice Messaging System)
See 
Voice Messaging System (VMS).
VMS Hunt Group
Hunt Group 7, reserved by the system to identify extensions that are associated with the voice 
messaging system hardware. 
See also 
Group Call Distribution 
and
 Hunt Group.
Voice Interrupt on Busy
A special intercom call that lets a user interrupt and speak to another user who is busy on a call. 
See also 
Voice Interrupt on Busy Talk-Back.
Voice Interrupt on Busy Talk-Back
A feature that lets the recipient of a voice interrupt on busy intercom call respond to the originator 
of that call. 
See also 
Voice Interrupt on Busy.
Voice Mail Coverage
A voice messaging system feature that provides Call Answer Service when a call is not answered 
by a covered extension. 
See also 
Call Answer Service.