Lucent Technologies 6.1 Dialed Number, Identification Service Dial-out code, Dial plan, Did trunk

MERLIN LEGENDCommunications System Release 6.1		Issue 1
System Planning 555-661-112	August 1998
Glossary
	Page GL-10
Dialed Number	See DNIS.
Identification
Service
dial-out code	Digit (usually a ￿) or digits dialed by telephone users to get
	an outside line.
dial plan	Numbering scheme for system extensions, lines, and
	trunks.
dial-repeating tie	Tie trunk on which the originating end of the tie trunk
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.”
DID	(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.
DID trunk	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.
digital	Representation of information in discrete elements such as
	off and on or zero and one. See also analog transmission.
Digital	See DCP.
Communications
Protocol
digital data station	See ISDN terminal adapter data station.
Digital Signal 0	See DS0.
Digital Signal 1	See DS1.
digital subscriber	See DSL.
line
digital switch	See DSE.
element
digital	Mode of transmission in which the information to be
transmission	transmitted is first converted to digital form and then
	transmitted as a serial stream of pulses. See also analog
	transmission.
DIP switch	(dual in-line package) Switch on a 400EM module used to
	select the signaling format for tie-line transmission. Also
	used on other equipment for setting hardware options.
direct facility	(DFT) See personal line.
termination
Direct Inward Dial	See DID.
Direct-Line	See DLC.
Console
Direct Station	See DSS.
Selector