Lucent Technologies MERLIN LEGEND Release 7.0 System Planning Manual page 449

MERLIN LEGEND Communications System Release 7.0
System Planning 555-670-112
Glossary
OPT
OPX
Out-of-Band
Signaling
P
Parity
PassageWay
Direct Connection
Solution
PBX
PC
PCMCIA Memory
Card
Peripheral System
Personal Line
PFT
Phantom
Extension
Pool
Point-to-Point
Facility
Off-Premises Telephone . Single-line telephone or other tip/
ring device connected to the system via a 008 OPT module
in the control unit. Appears as an inside extension to the
system, but may be physically located away from the
system.
Off-Premises Extension .
Signaling that uses the same path as voice-frequency
transmission and in which the signaling is outside the band
used for voice frequencies.
Addition of a bit to a bit string so that the total number of
ones is odd or even; used to detect and correct
transmission errors.
Set of software applications that provides an interface
between a personal computer and an MLX telephone.
Private Branch Exchange . Local electronic telephone
switch that serves local stations (for example, extensions
within a business) and provides them with access to the
public network.
Personal Computer .
Personal Computer Memory Card International Association
Memory Card . See Memory Card
In a private network , system that does not connect to more
than one other system, sometimes called an "end node."
Central office line/trunk that terminates directly at one or
more extensions. In Hybrid/PBX mode , a personal line
cannot be part of a line/trunk pool . Also called "DFT" (Direct
Facility Termination).
Power Failure Transfer . Feature that provides continuity of
telephone service during a commercial power failure by
switching some of the system's line/trunk connections to
telephones connected to specially designated extension
jacks.
Extension that is not actually plugged into the system, but
is used, for example, as a calling group member covered
by a voice messaging system .
In Hybrid/PBX mode , a group of outside lines/trunks that
users can access with a Pool button or by dialing an access
code on an SA button . Also used by the ARS feature when
choosing the least expensive route for a call.
In a private network, a line/trunk that passes through the
PSTN without using the switching capabilities of the PSTN.
Issue 1
April 1999
.
GL-21