Lucent Technologies 555-661-150 manual Qcc, Ram, Rom

MERLIN LEGEND Communications System Release 6.1	Issue 1
Network Reference 555-661-150	August 1998
Glossary
	Page GL-23

Q

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, direct inside and outside calls to an extension
	or an outside telephone number, serve as a message
	center, make outside calls for users with outward calling
	restrictions, set up conference calls, and monitor system
	operation.

R

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 ROM.
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. See also backup.
restricted data	Restricted data channels do not allow the transmission of
channel	occurrences of more than seven contiguous zero bits. See
	also unrestricted data channel.
ring generator	Circuit pack added to the power supply that generates a
	high-voltage, 20–30 Hz signal to ring a telephone.
riser cable	Cable that runs between floors in a multistory 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 m).
robbed-bit	Signaling in which the least significant bit of every sixth
signaling	frame per channel is used for signaling in that channel.
ROM	(read-only memory) Computer memory that can be read
	but cannot be changed.