
424 Glossary
Enterprise Edge Programming Operations Guide P0911588 Issue 01
Power cable
A cable that connects the Enterprise Edge Server to apower source.
public line
An external line that can be assigned to any telephone and to many telephones. A
line is assigned as Public under Trunk/Line data in Lines programming.
public network
The regular telephone network that connects most homes and businesses.
pulse/tone dialing
An external line setting for pulse or tone dialing. Pulse is the traditional method of
dialing used by rotary-dial or push-button single-line telephones. Tone dialing
allows telephones to communicate with other devices such as answering machines.
Tone dialing is required to access the features that PBX systems may offer or to use
another system remotely.
PVC
See Permanent virtual circuit.
Q
Quality of Service (QoS)
On the Internet and in other networks, QoS refers to guaranteed throughput level.
QoS allows to measure, improve and, to some level, guarantee the transmission
rates, error rates, and other data transmission characteristics. QoS is critical for the
continuous and real-time transmission of video and multimedia information which
use high bandwidth.
QoS
See Quality of Service (QoS).
Q reference point signalling (QSIG)
QSIGisanETSIstandard signallingformulti-vendorpeer-to-peercommunications
between PBXs and/or central offices.
R
RAM (Random Access Memory)
Computer memory that stores data temporarily. RAM stores the data used by the
microprocessor as it executes instructions. The contents of RAM are erased each
time the Enterprise Edge Server is turned off or restarted.
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