|
|
 |
- ICB (Individual Case Basis)
- Unusual products often require an ICB to determine the pricing. Marketing supports this.
- IEC (InterExchange Carrier)
- Refers to a Long Distance Carrier. IXC is another term.
- ILEC (Incumbent Local Exchange Company)
- Companies such as Pacbell and GTE.
- INC (Industry Numbering Committee)
- An industry forum sponsored by the Alliance of Telecommunications Industry Solutions (ATIS). It provides an open forum to address and resolve industry-wide issues associated with the planning, administration, allocation, assignment and use of numbering resources and related dialing considerations for public telecommunications within the North American Numbering Plan (NANP) area. INC documents are available from: www.atis.org/atis/clc/inc/incdocs.htm. (npagdln.doc, INC Documents, http://www.atis.org/atis/clc/ic/incdocs.html)
- Independent LEC (Independent Local Exchange Carrier)
- Refers to non- "Ma" Bell Companies, such as GTE.
- Intrastate
- Communications inside one state.
- Interstate
- Communications between states.
- ISDN (Integrated Services Digital Network)
- A standard digital network that lets users send voice, data and video over one telephone line from a common network interface.
- IXC (InterExchange Carrier)
- Abbreviation for any long distance carrier. IEC is another abbreviation favored by LECs.
- LAN (Local Area Network)
- A data communications network that is geographically limited (typically to a 1 km radius) allowing easy interconnection of terminals, microprocessors and computers within adjacent buildings. Ethernet and FDDI are examples of standard LANs.
Because the network is known to cover only a small area, optimizations can be made in the network signal protocols that permit data rates up to 100Mb/s.
- LEC (Local Exchange Company)
- Refers to companies such as Pacbell or GTE.
- LERG (Local Exchange Routing Guide)
- The LERG contains information about the current network configuration and scheduled changes within the local exchange providers' networks. The LERG is primarily designed to be used for routing of interLATA calls by inter-exchange carriers. The LERG informs telecom companies which end office or tandem office the NNX resides in and how calls should be routed and rated so that they can properly terminate to the appropriate telephone number at the proper rate.
- LNP (Local Number Portability)
- LNP is the ability of end users to retain their existing telephone numbers when remaining at a location, or changing their location but staying within the same geographical exchange area served by the initial carrier's serving central office, regardless of the LEC or CLC selected. LNP is also referred to as Service Provider Portability.
- LOA (Letter of Agency)
- This is exchanged between telecomm companies, or between a customer and a telecomm company granting permission for the receiver to install telecomm service to the sender.
- Locality
- Within each rate center there may be more than one "locality" - locality usually denotes a sub-city name such as the "called-from" place appearing on a customer's bill, to a rate center, to the exchange area that the NXX is identified with in a local tariff. Localities that are associated with specific rate centers can be looked up in section 6 of the LERG.
- Local Loop
- The local loop is the telephone line that runs from the local Telephone Company to the end user's premise. The local loop can be made up of fiber, copper or wireless media. Same as local exchange loop facility whose formal definition is "known as a basic level network access channel, local exchange loop facility means a transmission path capable of delivering analog voice grade signals or digital signals at less than 1.544 Mbps between the network interface at a customer's premises and the main distribution frame or any other point of interconnection to the LEC network."
- LRN (Local Routing Number)
- A 10-digit code that represents a specific carrier. This code is "attached" to each phone number to indicate which "carrier" the phone number currently is subscribed with for routing purposes. Created for the LNP process, when a customer switches carriers, the new carrier's LRN replaces the old.
- LSO (Local Serving Office)
- LSP (Local Service Provider)
- A term intended to encompass all companies providing dial tone to end users, including but not limited to Incumbent Local Exchange Carriers (ILEC), Alternative Local Exchange Carriers (ALEC) and Private Branch Exchange (PBX) providers.
- MPOE (Minimum Point of Entry)
- MSAG (Master Street Address Guide)
- A listing of all streets and number ranges within a 9-1-1 service area. The streets and address ranges are assigned routing codes, or emergency service numbers (ESNs), to enable proper routing of 9-1-1 calls.
- Multiplexing or Mux
- Multiplexing is a technique whereby multiple devices can share a telephone line. With multiplexing, users do not have to lese individual telephones for each computer that wishes to communicate. T-1 multiplexers enable 24 devices to share one telephone line.
|
|
