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LAN (IEEE 802.3 10BaseT)
LAN (Local Area work) is an Institute of Electrical and Electronic Engineers specification for a class of LANs using four-pair unshielded twisted pair (UTP) cable. See Local Area work.
LAN
local area work
LATA
local access and transport area
LCR
least-cost routing
LDN
listed directory number; generally an anization's main telephone number that appears in the telephone book.
LDN
listed directory number
LEC
local exchange carrier
Line
See loop transmission facilities.
Local Access And Transport Area (LATA)
LATA is a geographic area (called an "exchange" or "exchange area" in the MFJ) within each BOC's franchised area that has been established by a BOC in accordance with the provisions of the MFJ for the purpose of defining the territory within which a BOC may offer its telemunications services. In 1989, there were 198 LATAs, also referred to as market service areas (MSAs), in the United States.
Local Area work (LAN)
LAN is a premises high-speed (typically in the range of 10 Mbps) data munications system wherein all segments of the transmission medium (typically coaxial cable, twisted pair or optical fiber) are contained within an office or campus environment.
Local Channel
In LEC tariffs, a local channel is the local loop that connects customer premises to serving LEC wire centers. In IXC tariffs, the work ponents (transmission, switching, other) used to connect customer premises to serving IXC POPs.
Loop Length
Typically, loop length is a plete electrical circuit; the pair of wires that winds its way from the central office to the telephone set or system at the customer's premises.
Loop Signaling
Loop signaling is a method of signaling over dc circuit paths that utilizes the metallic loop formed by the line or trunk conductors and terminating circuits.
Loop Start
Loop start is a supervisory signal given at a telephone or PBX in response to closing the loop's DC current path.
Loop Transmission Facilities
Loop transmission facilities connect switching systems to customer premises equipm
ent throughout the serving area. A loop is a transmission path between a customer's premises and a LEC central office. The most mon form of loop, a pair of wires, is also called a line. A loop" can be derived from digital loop carrier (DLC) systems also referred to as subscriber loop carrier (SLC) systems.
LSI
large-scale integrated circuit
LAN - Local Area work. A data munications work that lies within a limited space (such as a building) to connect telephone lines, puters, modems, printers, etc.
Local Access and Transport Area (LATA) - Geographical boundaries within which local telephone panies may provide local telephone services (and some limited toll services). There are 184 LATAs in the United States.
Leased Line - A phone line dedicated for exclusive use from one location to another. High speed connections require a leased line.
Lifeline/Link-Up Program - A Federal program designed to provide telephone service to the poor and elderly at a reduced cost to assure they can be reached in case of an emergency.
Link - See Hypertext Link
LISTSERV - Mailing lists that act as newsgroups.
Local Number Portability Charge (LNP) - Allows a customer to keep the same phone number and "port" it over to another service provider. This is new to wireless. The terms number portability (NP) and local number portability (LNP) are often used interchangeably.
Local Number Portability Charge (LNP) - This charge may appear on the local portion of a phone bill if you live in an area where local number portability is provided. This fixed monthly charge allows local telephone panies to recover certain costs for providing “portability” to its customers. Local telephone panies may continue to assess this charge on their customers’ telephone bills for five years from the date the local telephone pany first began itemizing the charge on the bill. This is not a tax.
Login Name - The unique account name used to access a puter system. Also called user ID or user name, it is a way people identify themselves to their online service or Inter access provider.
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