Telecommunications in the Czech Republic

Telephones - main lines in use: 2.888 million (2006)

Telephones - mobile cellular: 13.075 million (2007)

Telephone system:
domestic: 86% of exchanges now digital; existing copper subscriber systems now being improved with Asymmetric Digital Subscriber Line (ADSL) equipment to accommodate Internet and other digital signals; trunk systems include fibre-optic cable and microwave radio relay Indian Ocean regions), 1 Intelsat, 1 Eutelsat, 1 Inmarsat, 1 Globalstar

Radio broadcast stations: AM 31, FM 304, shortwave 17 (2000)

Radios: 3,159,134 (December 2000)

Television broadcast stations: 150 (plus 1,434 repeaters) (2000)

Televisions: 3,405,834 (December 2000)

Internet Service Providers (ISPs): more than 300 (2000)

Internet users: 4.4 million (2007)

Country code: CZ

See also : Czech Republic

Czech mobile phone companies

O₂ T-Mobile Vodafone

Telecommunications

History	Beacon Broadcasting Cable TV Communications satellite Computer network Drums Electrical telegraph Fax Heliographs Hydraulic telegraph Internet Mass media Mobile phone Optical telecommunication Optical telegraphy Photophone Prepaid mobile phone Radio Radiotelephone Satellite communications Semaphore Smartphone Smoke signals Telecommunications history Telautograph Telegraphy Teleprinter (teletype) Telephone The Telephone Cases Television Timeline of communication technology Undersea telegraph line Videoconferencing Videophone Videotelephony

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

Transmission media	Electromagnetic radiation Electrical cable Free-space optical communication Molecular communication Optical fiber

Network topology and switching	Links Nodes Terminal node Network switching (circuit packet) Telephone exchange

Multiplexing	Space-division Frequency-division Time-division Polarization-division Orbital angular-momentum Code-division

Networks	ARPANET BITNET Cellular network Computer CYCLADES Ethernet FidoNet Internet ISDN LAN Mobile NGN NPL network Public Switched Telephone Radio Telecommunications equipment Television Telex WAN Wireless World Wide Web

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