Avaya Communication Manager Administrator's Manual page 1826

Glossary and Abbreviations
T
TAAS
Trunk Answer from Any Station
TABS
Telemetry asynchronous block serial
TAC
Trunk-access code
tandem switch
A switch within an electronic tandem network (ETN) that provides the logic to determine the best
route for a network call, possibly modifies the digits outpulsed, and allows or denies certain calls to
certain users.
tandem through
The switched connection of an incoming trunk to an outgoing trunk without human intervention.
tandem tie-trunk network (TTTN)
A private network that interconnects several customer switching systems.
TC
Technical consultant
TCM
Traveling class mark
TDM
See time-division multiplexing
TDR
Time-of-day routing
TEG
Terminating extension group
terminal
A device that sends and receives data within a system. See also
TFTP
Trivial file transfer protocol
tie trunk
A telecommunications channel that directly connects two private switching systems.
time-division multiplex (TDM) bus
A bus that is time-shared regularly by preallocating short time slots to each transmitter. In a PBX, all
port circuits are connected to the TDM bus, permitting any port to send a signal to any other port.
time-division multiplexing (TDM)
Multiplexing that divides a transmission channel into successive time slots. See also multiplexing.
time interval
The period of time, either one hour or one-half hour, that BCMS measurements are collected for a
reports.
time slice
time interval.
See
1826
(TDM).
Administrator's Guide for Avaya Communication Manager
administration terminal.
November 2003