Public broadcasting — includes radio, television and other electronic media outlets whose primary mission is public service. Public broadcasters receive funding from diverse sources including license fees, individual contributions, public financing and commercial… … Wikipedia
Cellular router — Cellular routers (sometimes known as 3G Routers) are routers that provide shared Internet access by incorporating a cellular data modem as WAN interfaces (generally, Ethernet and WiFi).They can be deployed as a primary WAN link to a location… … Wikipedia
Cellular digital packet data — (CDPD) uses unused bandwidth normally used by AMPS mobile phones between 800 and 900 MHz to transfer data. Speeds up to 19.2 kbit/s are possible.Developed in the early 1990s, CDPD was large on the horizon as a future technology. However, it had… … Wikipedia
Cellular network — Top of a cellular radio tower A cellular network is a radio network distributed over land areas called cells, each served by at least one fixed location transceiver known as a cell site or base station. When joined together these cells provide… … Wikipedia
Cellular Phone — Smartphone aus dem Jahr 2004: das Siemens SX1 mit integriertem Radio und MP3 Player Ein Mobiltelefon (auch Handy, Funktelefon, GSM Telefon, Funker, in der Schweiz auch Natel) ist ein tragbares Telefon, das über Funk mit dem Telefonnetz… … Deutsch Wikipedia
Public switched telephone network — The public switched telephone network (PSTN) is the network of the world s public circuit switched telephone networks. It consists of telephone lines, fiber optic cables, microwave transmission links, cellular networks, communications satellites … Wikipedia
Public land mobile network — In telecommunication, a public land mobile network (PLMN) is a network that is established and operated by an administration or by a recognized operating agency (ROA) for the specific purpose of providing land mobile telecommunications services… … Wikipedia
Cellular concepts — There are multiple concepts behind mobile phones, including the physics behind the network and towers that connect the cellular phones.The conceptThe concept of cellular radio can be used to explain the diffening receptions at various… … Wikipedia
Service Improvement Plan — The Service Improvement Plan (SIP) is a program mandated by the Canadian Radio television and Telecommunications Commission (CRTC) to provide a defined level of basic telephone service to all Canadians, other than those so isolated that it is… … Wikipedia
Mobile Telephone Service — The Mobile Telephone Service (MTS) is a pre cellular VHF radio system that links to the Public Switched Telephone Network (PSTN). MTS was the radiotelephone equivalent of land dial phone service. As of 2005[update], only rural and wilderness… … Wikipedia
Ricochet (internet service) — Ricochet Networks was one of the pioneering wireless Internet service providers in the United States, before the advent of widespread Wi Fi, 3G, and broadband services were available to the general public. HistoryService began in 1994 in… … Wikipedia