Cell phones are basically combined radio transmitters and receivers that connect to a network of radio masts, which relay the signal between phones. Modern phones also contain small computers, allowing the phone to run s... More »

www.reference.com Technology Mobile

Prepaid cell phones require the customer to pay for the service in advance, without commitment to a long term contract. When people buy a prepaid cell phone, they have to set up an account that directly links to that par... More »

www.reference.com Technology Mobile

Cell phone data plans are usually broken into different tiers, meaning the more data that is included in the plan, the more expensive the monthly cost, although some plans also offer a limited amount of free data per mon... More »

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Symbols that appear on Samsung cellphones include a small radar, which means that Wi-Fi is switched on, and a signal strength icon, which indicates the strength of the network signal at a location. The flight-mode symbol... More »

Cell phones have changed communication by allowing people to connect with friends, family members and coworkers quickly, and allowing them to interact with others virtually, without requiring a physical presence to inter... More »

Cell phones can be purchased at stores or online at vendors such as Walmart, Target and Best Buy, or at licensed cellular network stores such as Verizon Wireless, AT&T and Sprint. The cell phones include standard models,... More »

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Cell phones with the best cellular reception are without exception phones on Verizon's network. Verizon uses CDMA technology, which runs on a 850MHz frequency. Smaller MHz frequency offers better reception and is able to... More »