Lucent Technologies MERLIN LEGEND Release 6.1 System Planning Manual page 565

MERLIN LEGENDCommunications System Release 6.1
System Planning 555-661-112
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.
The 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 , a 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.
An 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
August 1998
Page GL-21