MERLIN LEGEND Communications System Release 7.0
System Programming
555-670-111
Issue 1
April 1999
Glossary
GL-24
Q
R
QCC
Queued Call Console
. MLX-20L telephone used by a
system operator in
Hybrid/PBX mode
only. Used to answer
outside calls (directed to a system operator position) and
inside calls, to direct inside and outside calls to an
extension or to an outside telephone number, to serve as a
message center, to make outside calls for users with
outward calling restrictions, to set up conference calls, and
to monitor system operation.
RAM
Random-Access Memory
. Computer memory in which an
individual
byte
or range of bytes can be addressed and
read or changed without affecting other parts of memory.
Read-Only
Memory
See
.
Remote Access
System feature that allows an outside caller to gain access
to the system, almost as if at a system extension. In a
private network
, remote access settings are used to control
calls routed via
ARS
or
UDP
routing across the network.
Restore
Procedure whereby saved and archived system
programming is reinstated on the system, from a floppy
disk or
memory card
.
Restricted Data
Channel
Channels that do not allow the transmission of occurrences
of more than seven contiguous zero bits. See also
.
Ring Generator
Circuit pack added to the power supply that generates a
high-voltage, 20–30 Hz signal to ring a telephone.
Rotary Dial Enable
Through centralized programming, T/R ports (including the
T/R ports on the new ETR modules) can be programmed to
accept rotary-dial and touch-tone digits or just touch-tone
digits. Available in Release 7.0 and later systems.
Riser Cable
Cable that runs between floors in a multi-story building and
connects wiring closets.
RS-232
Physical interface, specified by the Electronics Industries
Association (EIA), that transmits and receives
asynchronous data at distances of up to 50 feet
(15 meters).
Robbed-Bit
Signaling
Signaling in which the least significant
bit
of every sixth
frame
per channel is used for signaling in that channel.
ROM
Read-Only Memory
. Computer memory that can be read,
but cannot be changed.