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Mobile Phone FeaturesModern mobile phones can make and receive calls automatically, operating as would a normal phone (though most have a superset of the ability of fixed-line phones). Mobile phones do not only support voice calls; they can also send and receive data and faxes (if a computer is attached), send short messages (or "text messages"; see SMS), access WAP services, and provide full Internet access using technologies such as GPRS. Mobile phones usually have a clock and a calculator and often one can play some games on them. Newer models also allow for sending pictures and have a built-in digital camera. This gives rise to some concern about privacy, in view of possible voyeurism, for example in swimming pools. For this reason, Saudi Arabia has banned cameraphones entirely; South Korea has ordered manufacturers to ensure that all new handsets emit a beep whenever a picture is taken. Some swimming pools have banned camera mobile phones in their pools and changing rooms. Some companies and military agencies prohibit camera phones in certain locations for security reasons. On the other hand, cameras can be used by crime victims or witnesses to help identify the criminals. GPS receivers are starting to appear in cell phones, primarily to aid in dispatching emergency responders. Newer models have included many features aimed toward personalisation, such as user defined and downloadable ring tones and logos, and interchangeable covers, which have helped in the uptake by the teenage market. Usually one can choose between a ring tone, a vibrating alert, or a combination of both.
Rrticle originally published on http://en.wikipedia.org
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