| |
| |
Why War? Keywords: Cell Phone (Site not responding. Last check: 2007-11-01) |
 | | In telecommunication, a wireless phone, handy, cellular mobile or cell phone (in the United States), also called a mobile phone in other English speaking countries, is a mobile communications system that uses a combination of radio wave transmission and conventional telephone switching to permit telephone communication to and from mobile users within a specified area. |
 | | Mobile phones must be distinguished from portable phones (called cordless phones in the US); with a portable phone the user purchases their own base station, which they connect to a landline, the range of the phone is generally restricted to under 50 m, and the phones operate on a different frequency and protocol (e.g. |
 | | Mobile phones do not only support voice calls; they can also send and receive data and faxes (if a computer is attached), sending short messages (or "text messages"; see Short Message Service), access WAP services, and provide full Internet access using technologies such as GPRS. |
| www.why-war.com /encyclopedia/objects/cell_phone (2133 words) |
|