A mobile phone or cell phone is an electronic telecommunications equipment. The majority of current mobile phones connect to the network via a wireless radio wave transmission technology, although satellite phones are exceptions. These phones via a cellular network of base stations known as cell sites, which in turn related to the conventional telephone network and were first to communicate in the early to mid 1980s, introduced the so-called 1G generation are known.

Earlier cell phones that range without a mobile network, the so-called 0G generation, such as Mobile Telephone Service, back to 1946. In anticipation of the mid to late 1980s, most mobile phones were sufficiently large that they were always permanently installed in vehicles as car phones. In the middle of the progress of miniaturization, by which time the vast majority of phones are handheld.

Functions of a mobile phone

In addition to the standard voice function of a telephone, a mobile phone can be up many additional services such as SMS for text messaging, packet switching for access to the Internet, and for the transmission of MMS and receiving photos and video. A number of the world's largest mobile phone manufacturer

• Alcatel

• Audiovox

• Fujitsu

• Kyocera

• LG

• Motorola


• Nokia,

• Panasonic (Matsushita Electric)

and much more ... ..

There are specialists in addition to communications relating to, but separate from mobile phones, such as Professional Mobile Radio. Mobile phones are also distinct from cordless telephones, which are generally operated only within a limited area of a particular base station. Technically, the term mobile devices such as satellite phones and pre-cellular mobile phones such as the operation via MTS which do not via a cellular network, while the related term cell (not others) phone. In reality, the two terms are almost interchangeable with the term favored by using different location.

Technology on the mobile phone work

Mobile phones and the network this function under a set of provider to provider and even vary from nation nation. On the other hand, all of them communicate through electromagnetic radio waves with a cell site or base station antennas, the large and mounted on a tower, mast or building. The phones have a low-power transceiver for voice and data to nearby cell sites to transmit usually 5-8 miles away.

If the cell phone or data device is turned on, it registers with the mobile telephone exchange, or go with her only one of its type identifiers, and to then be notified by the mobile switch when there is an incoming phone call. The handset constantly listens for the strongest signal from the neighboring base stations received. As the user moves in the region of the network, the mobile device will hand off to new cell sites.

Cell sites have relatively low power (usually only one or two watts) radio transmitters which broadcast her there and relay messages in terms of mobile handsets and the switch. The switch in turn connects the call to another subscriber of the same wireless service provider or to the public telephone network, which includes the networks of other mobile operators. The conversation between the handset and the cell site is a stream of digital data that includes digitized audio (except for the first generation analog networks).

The technology or the know-how reached, this depends on the system that the mobile phone operator has adopted. A number of technologies include AMPS for analog, TDMA, CDMA, GSM, GPRS, EV-DO, UMTS for digital communications.

Barbara Rittner is a wireless communications technology expert. You regsiters often their views on hxxp://phones.blogtastic.com