Lucent Technologies MERLIN LEGEND Release 6.1 System Manager's Manual page 454

MERLIN LEGEND Communications System Release 6.1
System Manager's Guide 555-661-118
Glossary
TSAPI
TTR
U
UDP
unambiguous
numbering
Uniform Dial Plan
uninterruptible
power supply
unit load
unmonitored
extension
unrestricted data
channel
UPS
Telephony Services Application Programming Interface.
An application programming interface that allows computer
telephony applications to be used. TSAPI is supported by
the MERLIN LEGEND Communications System Release
5.0. See also TAPI and CTI.
(touch-tone receiver) Device used to decode DTMF touch-
tones dialed from single-line or Remote Access telephones.
(Uniform Dial Plan) Composed of the local dial plan and
non-local dial plan . A dial plan that allows a caller at any
extension in a private network to dial the same number of
digits to reach any other extension in the private network,
even if the originating extension is physically connected to
one communications system and the terminating extension
is physically connected to a different communications
system.
The practice of numbering of extension ranges, remote
access codes, or other system components to avoid routing
conflicts in network or local calling. For example, Extension
441 is unique when compared to Extension 4410. However
it is ambiguous, because a system routes as soon as it
matches the digits sent for a call with the digits in a local
plan or in a non-local dial plan extension range. When a
caller dials , a system routes the call to Extension 441
immediately, without considering the last dialed digit.
See UDP .
See UPS .
Measure of the power load drain of a module, telephone, or
adjunct .
An extension for which no CTI application is receiving call
information. See also CTI link and monitored extension .
Unrestricted data channels (also called clear data
channels) allow the transmission of occurrences of more
than seven contiguous zero bits. If an unrestricted data
channel is requested and only restricted channels are
available, the call will be rejected. See also restricted data
channel.
(uninterruptible power supply) Device that connects to the
system to provide 117 VAC to the equipment when the
commercial power source fails.
Issue 1
August 1998
Page GL-27