AT&T MERLIN LEGEND Release 2.0 Equipment And Operations Manual page 268

Glossary
cyclic
redundancy
check
D4 framing
format
D-channel
data channel
data
communications
equipment
data hunt group
data rate
data terminal
data terminal
equipment
DCE
DCP
dedicated
feature buttons
DFT
DHG
GL-6 Glossary
See CRC.
A framing format consisting of a sequence of individual
frames of 24 eight-bit slots and one signal bit ( 193 bits) in a
12-frame superframe. See also ESF.
The 16-kbps or 64-kbps channel carrying signaling or data
on a Basic Rate Interface (BRI) or 64–kbps channel
carrying signaling or data on a Primary Rate Interface (PRI).
See D-channel.
See DCE.
See DHG.
See bit rate.
An input/output device that can be connected to the
communications system control unit via an interface.
See DTE.
(Date communications equipment) Equipment such as
modems or data modules used to establish, maintain, and
terminate a connection between the communications
system and DTE, such as printers, host computers, or
workstations.
An AT&T proprietary protocol to transmit both digitized
voice and data over the same communications link. A DCP
link is made up of two 64-kbps information (1) channels and
one signaling (S) channel similar to the B- and D-channels
used in an ISDN.
The imprinted feature buttons on a telephone: Conf or
Conference, Drop, HFAI (Hands Free Answer on
Intercom), Hold, Mute or Microphone, Speaker or
Speakerphone, Transfer, Message, and Recall.
(Direct facility termination) A CO line/trunk that terminates
directly on one or more telephones; in Hybrid/PBX mode, a
DFT cannot be part of a trunk pool.
(Data hunt group) A 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.