NPA Area Codes, NXX
Exchanges and XXXX Line Numbers The process for assigning 10-digit
(3+3+4) North American telephone numbers
Narrowband - Voice
Grade
A low-capacity communications Circuit / path. It usually
implies a speed of 56Kbps or less. (Contrast with Wideband and
Broadband)
NASC - 800 Number
Administration and Service Center
The organization that administers the SMS/800 system for the reservation, registration and
administration of all North American
800 numbers for all carriers. (See 800 Portability,
RespOrg and SMS/800)
NC Codes - Network
Channel Codes
Industry standard codes that define the type of service being
provided at each end of a circuit.
This system provides a Session layer interface between network
applications running on a PC and the underlying protocol software of the
Transport and Network layers on the ODI model. Normally a LAN protocol.
Network
A system of interrelated elements that are interconnected in
a dedicated or switched linkage to provide local or remote
communication (of voice, video, data, etc.) and to facilitate the
exchange of information between end users with common interests.
The set of switches, circuits, trunks and software that make
up a telecommunications facility.
Network Surveillance
Equipment, people, systems and procedures that monitor
network activity and react to unusual situations.
Network Data Mover
- NDM
File transmission protocol software
Network Database
Updates
Process for defining network configuration, valid access/use,
alternate routing tables, etc.
Networked
Computing Technologies
Hardware, software and architectural approaches for distributing
computer applications across interconnected computers.
Area Code Routing. Route calls based on the originating ANI NPA (area code.)
NPA Split
Subdividing an area code, with the creation of a new area code.
This is necessary when the number of telephones in an area code
(NPA) grows to an excessive number.
