Lucent Technologies MERLIN LEGEND Release 6.1 System Manager's Manual page 453

MERLIN LEGEND Communications System Release 6.1
System Manager's Guide 555-661-118
Glossary
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
tip/ring
touch-tone
receiver
T/R
trunk
trunk jack
trunk pool
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 .
Contacts and associated conductors of a single-line
telephone plug or jack.
See TTR .
See tip/ring .
Telecommunications path between the communications
system and the telephone company central office ( CO ) or
another switch. Often used synonymously with line .
See line/trunk jack .
See pool .
Issue 1
August 1998
Page GL-26