Glossery

A

AMPS : Advanced Mobile Phone System 

ADSL : Asymmetric digital subscriber line

B

BPR ; Branch point Refurbishing 

BTS : Base transceiver station 

C

CAF : Customer Agreement Form

CLT : Central loose tube 

CRM : Customer relation management

CSM : Central Strength Member

D

dB : Decibel 

DC : Distribution cabinet

DNS : Domain Name System

DSL : Digital subscriber line 

DDF : Digital Distribution Frame

DP : Distribution Point 

E

EHF : Extra High Frequency

F

FDM : Frequency Division Multiplexing

FM    :  frequency modulation

FSM  : Fiber Splicing Machine

G

GSM : Global System for Mobile Communication

GPRS : General Packet Radio Service

H

HDPE : High-density polyethylene

HLR : Home Location Register

HF : High frequency

I

IR : infrared

IDU : In Door Unit 

ISDN : Integrated Services Digital Network

ISD    : International Subscriber Dialing

J

K

L

LAN : Local area network 

LNA : Low-noise amplifier

LED : Light-emitting diode

LF : Low frequency

M

MAN : Metropolitan area network

MMS : Multimedia Messaging Service

MTSO : Mobile Telephone Switching Office

N

NAP : Network Access Point

NGN : Next-generation network

NWD : Nation Wide Dialing

O

ODF : Optical Distribution Frame

ONT : Optical Network Terminal

OLT : Optical Line Terminal

ODO : Out Door Unit 

ONU : Optical Network Unit 

ODF : Optical Distribution Frame

OTDR : Optical time-domain reflectometer

OFC : Optical Fiber Cable

OLTE : Optical Line Transmission Equipment

P

PON : Passive Optical Network

POP :  Point of Presence

POTS : Plain old telephone service

PCM : Pulse-code Modulation

PM : Phase modulation

Q

R

RG-6 : Radio Guide

RJ :     Registered jack

S

SMS : Short Message Service

SIM : Subscriber identity module

SDSL : Symmetric digital subscriber line

T

U
UHF:  Ultra high frequency
 

V

W

X

Y

Z