How Does a Cellular Phone Work ?

Wireless carriers use a system of areas or "cells" that are being executed by radio communications for managing the connections of all the calls made by mobile of their customers. They also track the footprint of each cell so that the can define the location and size of the call made. As the mobile phone moves, the call is dropped by the cell being exited and simultaneously picked up by the cell being entered. This switching takes place automatically and is transparent to the user. The radio cells range in size from 100 yards (100 meters) in busy downtown corridors to several miles (10 kilometers) in rural areas.

For the transmission of these cells, mobile carriers takes help through antennas. These are placed at high places so that they will be able to catch the signals. There is a List of mobile network operators which use the same platform for installing there antennas. The antennas can be mounted on freestanding towers, poles, rooftops, lamp posts, trees or flagpoles. Antennas are often integrated into the design of the buildings and surroundings.

There is a List of mobile network operators who do not have the surving capacity accorss the country. So they keep sharing there signals which in lay man's terms we call roaming. However, still sometime sthe signals gets intrupted because of huge buildings or trees or could be any other situaion. In this case, If the location of a phone is not served by a wireless carriers, a phone call cannot be started or received by that phone. If a mobile phone enters into such area during a call, the call will be dropped.

A consumer needs two things to utilize the benefits of wireless carriers they are,  a handset and a phone service from a wireless carrier or service provider. The handset manufacturers and wireless carriers work together to provide retail mobile phone service.

for more information visit our website : wireless industry association , Mobile Operators Association, Wireless Network Operators