# Outline of telecommunication

The following outline is provided as an overview of and topical guide to telecommunication:
Telecommunication – the transmission of signals over a distance for the purpose of communication. In modern times, this process almost always involves the use of electromagnetic waves by transmitters and receivers, but in earlier years it also involved the use of drums and visual signals such as smoke, fire, beacons, semaphore lines and other optical communications.

## Modes of telecommunication

* E-mail
* Fax
* Instant messaging
* Radio
* Satellite
* SMS
* Telegraphy
* Telephony
* Television broadcasting
* mobile telephony
* Videoconferencing
* VoIP
* Voicemail

## Types of telecommunication networks

Telecommunications network
* Computer networks
** ARPANET
** Ethernet
** Internet
** Wireless networks
* Public switched telephone networks (PSTN)
* Packet switched networks
* Radio network
* Broadband
* Wireless Broadband

## Aspects of telecommunication transmission

Telecommunication
* Analog
* Digital
* Functional profile
* Optics

### Telecommunication technology

* Modulation
** Amplitude modulation
** Frequency modulation
** Quadrature amplitude modulation
* Nyquist rate
* Nyquist ISI criterion
* Pulse shaping
* Intersymbol interference

### Communications media types

* Physical media for Telecommunication
** Twisted pair
** Coaxial cable
** Optical fiber
* Telecommunication through Free Space
** Broadcast radio frequency including television and radio
** Line-of-sight
*** Communications satellite
*** Terrestrial Microwave
*** Wireless LAN

### Relationship between media and transmitters

* Physical access to media
** Simplex
** Duplex (telecommunications)
* Logical relationships
** Return channel
** Two-way alternating
** Two-way simultaneous

### Multiple access to media

* Multiplexing
** Analog
*** Frequency division multiplexing
*** Space division multiplexing
** Digital
*** Time-division multiplexing
*** Statistical multiplexing and Packet switching
** Media Access Control
*** Contention
*** Token-based
**** Centralized token control
**** Distributed token control

## History of telecommunication

History of telecommunication
* History of telegraphy
* History of the telephone
   * Invention of the telephone
   * Timeline of the telephone
* History of radio
* History of television
* History of videophones
* History of mobile phones
* History of computing hardware
* History of the Internet

## Major telecommunications equipment manufacturers

* Alcatel-Lucent
* Aricent
* AT&T
* Avaya
* Ciena
* Cisco Systems
* Ericsson
* Fujitsu
* HCL Technologies
* Huawei
* NEC
* Nokia
* ShoreTel
* Verizon
* ZTE

## Major telecommunications service providers

* List of mobile network operators
* List of telephone operating companies

## Telecommunication organizations

* Alliance for Telecommunications Industry Solutions
* Telecommunications Industry Association

## Telecommunication publications

Magazines
* Billing and OSS World
* Cabling Installation & Maintenance
* Call Center
* Communications News
* Communications System Design
* Lightwave
* Mobile Radio Technology (MRT)
* New Telephony
* Phone+
* RCR Wireless News
* Telecom Asia
* Telecommunications Magazine
* Telephony
* WhatSatphone Magazine
* Wireless Systems Design
* Wireless Week
* Xchange

## Persons influential in telecommunication

* Edwin Howard Armstrong
* John Logie Baird
* Paul Baran
* Alexander Graham Bell
* Tim Berners-Lee
* Jagadish Chandra Bose
* Vint Cerf
* Claude Chappe
* Donald Davies
* Louis Pouzin
* Lee de Forest
* Philo Farnsworth
* Reginald Fessenden
* Elisha Gray
* Innocenzo Manzetti
* Guglielmo Marconi
* Antonio Meucci
* Alexander Stepanovich Popov
* Johann Philipp Reis
* Almon Brown Strowger
* Nikola Tesla
* Camille Tissot
* Alfred Vail
* Charles Wheatstone
* Vladimir K. Zworykin