Glossary and Abbreviations
time interval
The period of time, either one hour or
time slice
See time interval.
time slot
64 kbps of digital information structured as eight bits every 125 microseconds. In the switch, a time slot refers to either a DS0 on a T1 or E1 facility or a
time slot sequence integrity
The situation whereby the N octets of a wideband call that are transmitted in one T1 or E1 frame arrive at the output in the same order that they were introduced.
to control
An application can invoke Third Party Call Control capabilities using either an
to monitor
An application can receive event reports on an
TOD
Time of day
tone ringer
A device with a speaker, used in electronic voice terminals to alert the user.
TOP
trunk
A dedicated telecommunications channel between two communications systems or COs.
trunk allocation
The manner in which trunks are selected to form wideband channels.
trunk-data module
Adevice that connects
trunk group
Telecommunications channels assigned as a group for certain functions that can be used interchangeably between two communications systems or COs.
TSC
Technical Service Center
TTI
Terminal translation initialization
TTR
TTT
Terminating trunk transmission