Lucent Technologies MERLIN LEGEND 6 - Manual (Page 449)

MERLIN LEGEND Communications System Release 6.0
System Manager’s Guide
555-660-118
Issue 1
February 1998
Glossary
Page GL-25
T
system
acceptance test Test of all trunks, telephones, data terminals, and features
after installation to ensure that they are working correctly.
System Access
buttons See SA buttons.
system date and
time Date and time that appear on MLX display telephones and
SMDR reports.
system
programming Programming of system functions and features that affect
most users, performed from an MLX-20L telephone or a
computer using
SPM. See also extension programming
and centralized telephone programming.
System
Programming and
Maintenance See SPM.
system
renumbering Procedure used to change the numbers assigned to
telephones, adjuncts,
calling groups, paging groups, park
zones, Remote Access, and lines/trunks.
T1 Type of digital transmission facility that in North America
transmits at the
DS1 rate of 1.544 Mbps.
T1-emulated data 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.
T1-emulated voice A T1 tie trunk programmed for Tie-PBX or Tie-Toll for use
by voice calls.
T1 Switched 56
service T1 digital data transmission over the public network or over
a
private network at 56 kbps. See Switched 56 service.
tandem switching 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.
tandem trunk 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.
tandem tie trunk 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 PRI trunk (tandem Primary Rate Interface trunk) A private network
trunk.