
Glossary
GL-9
Pool Access Code—Release 2.0 or later
A three-digit code used to access outsid e lines in a specific pool. The main pool  and each auxiliary 
pool are known to the system as 880, 881, 882, and 883, respectively. Users can either dial the 
pool access code or press a pool button representing one of the pools to make a call.
Pool Button—Release 2.0 or later
A button with status lights on a system phone that represents a specific pool for making calls.
See also
 Pooled Extension.
Pool Number—Release 2.0 or later
See
 Pool Access Code.
Pooled Extension—Release 2.0 or later
An extension in Hybrid mode that has pool buttons or pool and li ne buttons. 
See
also
 Hybrid Mode 
and
 Key Extension.
Programmable Button
A telephone button that does not have a line or pool assigned; it can be set up to dial a number or 
access a feature.
Programming
See 
Centralized Telephone Programming, Extension Programming, 
and
 System Programming.
Programming Extension
An extension from which you can program the system; this can be either extension 10 or 11.
Proprietary Device
A telephone or other device that is designed to work with a specific system, and  requ ires  a s pec ia l 
interface to connect to the public telephone network. For example, system phones are proprietary 
devices that can only be used with the control unit described in this guide. 
See also 
Industry-
standard Device.
R
RAU (Remote Administration Unit)
An auxiliary device that lets you perform system programming from a remote location.
Recall
A system feature that sends a timed switchhook flash to let you “rec all” a  dial  tone to  make  anothe r 
call to or access a PBX or Centrex service. (Use Recall only on an outside call; using Recall on a n 
intercom call disconnects the call.)
Record a Call—Release 3.0 or later
This feature allows the user to record an active conservation in the user’s PMVS mailbox.
Reorder Tone
A fast busy signal that the system transmits to an extension when a u ser  atte mp ts  to u se  a feature 
that is not available to that extension.
Ringer Equivalence Number (REN)
A measure of the power it takes to ring a phone or other telecom municat ions dev ice, usual ly shown  
on a label on the bottom of the device.
Restore
The reinstating of system and telephone programming settings that have been saved on a 
Backup/Restore PC Card using either Backup Programming—Automatic (#123) or Backup