Lucent Technologies Release 6 Manual Do Utilizador
DEFINITY Enterprise Communications Server Release 6
Installation and Test for Multi-Carrier Cabinets
Installation and Test for Multi-Carrier Cabinets
555-230-112
Issue 5
May 1998
Glossary and Abbreviations
Page GL-49
trunk allocation
The manner in which trunks are selected to form wideband channels.
trunk-data module
A device that connects off-premises private-line trunk facilities and DEFINITY ECS. The trunk-data
module converts between the RS-232C and the DCP, and can connect to DDD modems as the
DCP member of a modem pool.
module converts between the RS-232C and the DCP, and can connect to DDD modems as the
DCP member of a modem pool.
trunk group
Telecommunications channels assigned as a group for certain functions that can be used
interchangeably between two communications systems or COs.
interchangeably between two communications systems or COs.
TSC
Technical Service Center
TTI
Terminal translation initialization
TTR
Touch-tone receiver
TTT
Terminating trunk transmission
TTTN
See
TTY
Teletypewriter
U
UAP
Usage-allocation plan
UART
Universal asynchronous transmitter
UCD
Uniform call distribution
UCL
Unrestricted call list
UDP
See
Uniform Dial Plan (UDP)
.
UL
Underwriter Laboratories
UM
User manager
Uniform Dial Plan (UDP)
A feature that allows a unique 4- or 5-digit number assignment for each terminal in a multiswitch
configuration such as a DCS or main-satellite-tributary system.
configuration such as a DCS or main-satellite-tributary system.