Lucent Technologies MERLIN LEGEND Release 7.0, Руководство по системному программированию

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MERLIN LEGEND Communications System Release 7.0
System Programming
555-670-111
Issue 1
April 1999
Glossary
GL-23
PRI Primary Rate Interface . Standard interface that specifies
the protocol used between two or more communications
systems. As used in North America, it provides twenty-
three 64-kbps
B-channels
for voice and/or data and one 16-
kbps D-channel , which carries multiplexed signaling
information for the other 23 channels.
Primary System
Operator Position First
jack
on the first MLX or analog multiline extension
module in the control unit—that is, the extension jack with
the lowest logical ID in the system.
Prime Line Individual extension number assigned to a telephone in a
system operating in
Behind Switch mode . Each telephone
user has his or her own prime line and is automatically
connected to that line when he or she lifts the handset.
Priority Call
Queuing System function that prioritizes calling groups, thereby
allowing certain incoming calls to be answered before
others. Available in Release 7.0 and later systems.
Private
Communications
Network See Private Network .
Private Network Interconnected group of communications systems , which
may consist of MERLIN LEGEND Communications
Systems, DEFINITY Enterprise Communications Servers
(ECS), and/or DEFINITY ProLogix Solutions.
Private Network
Trunks Facilities that connect communications systems in a private
network . See also Tandem Tie Trunk and Tandem PRI
Trunk
.
Processor Module Module in the second slot of the control unit (Slot 0, to the
right of the
power supply module ). Includes the software
and memory that runs the system.
Programming Port
Reassignment Reassignment of the system programming jack position to
any of the first five extension jacks on the first MLX module
in the control unit.
Protocol Set of conventions governing the format and timing of
message exchanges between devices, such as an MLX
telephone and the control unit.
PSTN
Public Switched Telephone Network
. Network that is
commonly accessible for local or long-distance calling. Also
called “public network” or “public switched network.”
PSTN Trunk In a
private network
, facility that connects a networked
system to the public switched telephone network .
Public switched
Telephone
Network See PSTN .