Lucent Technologies MERLIN LEGEND Release 6.1 System Planning Manual page 570

MERLIN LEGENDCommunications System Release 6.1
System Planning 555-661-112
Glossary
System
Programming and
Maintenance
system
renumbering
T
T1
T1-emulated data
T1-emulated voice
T1 Switched 56
service
tandem switching
tandem trunk
tandem tie trunk
tandem PRI trunk
TAPI
telephone power
supply unit
terminal adapter
tie trunk
timed flash
See SPM .
Procedure used to change the numbers assigned to
telephones, adjuncts, calling group s, paging groups, park
zones, Remote Access , and lines/trunks.
Type of digital transmission facility that in North America
transmits at the DS1 rate of 1.544 Mbps.
A T1 tie trunk programmed for S56DATA for use by data
calls at speeds up to 56 kbps. These trunks may be used
for tandem and non-tandem operation.
A T1 tie trunk programmed for Tie-PBX or Tie-Toll for use
by voice calls.
T1 digital data transmission over the public network or over
a private network at 56 kbps . See Switched 56 service .
The capability of private network communications systems
that allows them to direct outside calls from one facility to
another facility, rather than just to an extension. Calls may
be sent, for example, from a PSTN facility to a tandem
trunk or vice versa.
An private outside facility (as opposed to an inside system
line) that connects two communications systems in a
private network and can carry calls to another outside
facility through tandem switching . The trunk is not
connected to the PSTN .
A tandem trunk that is an analog delay-start tie trunk ,
providing a single line/trunk per facility and allowing analog
transmission of voice and low-speed data; or a T1 facility
offering 24 channels on emulated tie trunks and
programmed for voice or data.
(tandem Primary Rate Interface trunk) A private network
trunk.
Telephony Application Programming Interface. An
application programming interface that allows computer
telephony applications to be used. TAPI is not yet
supported by the MERLIN LEGEND Communications
System. See also TSAPI and CTI.
Equipment that provides power to an individual telephone.
See ISDN terminal adapter .
Private trunk directly connecting two telephone switches.
See switchhook flash .
Issue 1
August 1998
Page GL-26