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Unless you are an engineering genius, it would be next to impossible not to mention expensive to build a working cell phone. Many cell phone companies offer good deals with a contract
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Cell phones are good to have if you have teen age kids that have a busy social life. It is a great way to keep in touch with them or just text to know where they are.
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Cell phones components are similar to traditional corded phones. The major differences are with the battery and SIM card. The SIM card, or Subscriber Identity Module card is the key
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Doctor Martin Cooper was the lead engineer in the team that developed the technology that is responsible for the modern Motorola cellphone.
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