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About Cell Phone
Cell phones (or mobile phones) are long-range, portable electronic devices for mobile communication. Besides the standard telephone voice function, a cell phone can support some additional services such as e-mail, SMS for text messaging, access to the Internet, and MMS for sending and receiving photos, audio and video.
The 5 biggest cell phone manufacturers are Nokia (the world's largest), Motorola, Samsung, SonyEricsson and LG. There are a few major technical standards for the modern cell phones and networks: GSM, CDMA, TDMA, iDEN and PDC. The 3rd generation networks usually use the WCDMA standard. |
Supported by converters
Convertability