Lucent Technologies MERLIN LEGEND 6 System Manager's Manual page 433

MERLIN LEGEND Communications System Release 6.0
System Manager's Guide 555-660-118
Glossary
D-channel
dedicated feature
buttons
delay-start tie
trunk
desktop
videoconferencing
system
DFT
DHG
dial access
Dialed Number
Identification
Service
dial-out code
dial plan
dial-repeating tie
trunk
DID
DID trunk
digital
Digital
Communications
Protocol
digital data station
Digital Signal 0
(Data-channel) 16- or 64-kbps channel that carries
signaling information or data on a PRI or BRI .
The imprinted feature buttons on a telephone: Conf or
Conference, Drop, Feature, HFAI (Hands Free Answer on
Intercom), Hold, Message, Mute or Microphone, Recall,
Speakerphone or Spkrphone, and Transfer.
Tie trunk or tandem tie trunk on which the originating end of
the tie trunk transmits an off-hook signal to the receiving
end and waits for the receiving end to send an off-hook
signal followed by an on-hook signal. Also called "dial-
repeating tie trunk."
A system application that allows face-to-face,
simultaneous video and voice communications between
individuals and requires high-speed data transmission
facilities. See also group videoconferencing system.
(direct facility termination) See personal line .
(data hunt group) Group of analog or digital data stations
that share a common access code. Calls are connected in
a round-robin fashion to the first available data station in
the group.
See feature code .
See DNIS .
Digit (usually a ( ) or digits dialed by telephone users to get
an outside line.
Numbering scheme for system extensions, lines, and
trunks.
Tie trunk on which the originating end of the tie trunk
transmits an off-hook signal to the receiving end and waits
for the receiving end to send an off-hook signal followed by
an on-hook signal. Also called "dial-repeating tie trunk."
(Direct Inward Dial) Service that transmits from the
telephone company central office and routes incoming calls
directly to the called extension, calling group , or outgoing
line/trunk pool , bypassing the system operator.
Incoming trunk that receives dialed digits from the local
exchange, allowing the system to connect directly to an
extension without assistance from the system operator.
Representation of information in discrete elements such as
off and on or zero and one. See also analog transmission .
See DCP .
See ISDN terminal adapter data station.
See DS0 .
Issue 1
February 1998
Page GL-9