AT&T MERLIN LEGEND Release 3.1 Maintenance And Troubleshooting Manual page 396

Glossary
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 hunt group) Group of modem or ISDN terminal
adapters which have 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 "delay dial start tie
trunk."
(Direct Inward Dialing) Service that transmits from the
telephone company central office and routes incoming
calls directly to the called extension, calling group , or
outgoing 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 .
Maintenance and Troubleshooting
GL–11