NAMP 

Nokia Artus Messaging Platform

NAS 

Network Access Server / Network Access Service

NAT 

Network Address Translation

NB 

Narrow Band

NBAP 

Node B application Part

NB-TDD 

Narrow Band TDD

NCSA 

National Center for Supercomputing Applications (University of Illinois)

NDW 

Network Data Warehouse

NE 

Network Element

NFS 

Network File System

NGN 

Next Generation Network

NIDT 

Network Information Deployment Tool

N-ISDN 

Narrowband Integrated Service Digital Network

NMS 

Network Management Subsystem

NMS/1000 

Nokia's Network Management System for fixed networks

NMS/2000 

Nokia's Network Management System for mobile networks

NMSI 

National Mobile Station Identifier

NNI 

Network-to-Network Interface

NNTP 

Network News Transfer Protocol

Node B 

Station de base UMTS

NPC 

Network Parameter Control

NPR 

Network Performance Reporting

Nrm 

An ABR service parameter

NRT 

Non Real Time

NS 

Network Service

NSAPI 

Network layer Service Access Point Identifier

NSC 

Sim card Serial umber

NSCE 

External Sim card Serial Number

NSI 

Network Solutions Inc.

NSS 

Network and Switchning Subsystem

NSS 

Network Sub System

NS-VC 

Network Service -Virtual Circuit

NS-VL 

Network Service -Virtual Link

NT 

Network termination

Nt 

Notification (SAP)

NT1 

Network Termination Type 1

NTN 

Network Termination Node

NTS 

Number Translation Services

NUR 

Network Unavailability Rate