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Smartphone
A cell phone that performs conputer applications.

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Signal Strength
Strength of a connection over a wireless telecommunication system.

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Service Provider
A company or organization that offers a service.

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Short Messaging Service
Text messging service for cell phones

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Roaming
Extension of service or coverage in a wireless telecommunications systems.

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Multimedia Messaging Service
Allows for sending video,audio, pictures.

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Location based service
Uses location to provide information on various places.

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Interference
Any disruption or alteration of a signal in cell phones.

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E-Mail
Electronic mail sent between computer networks.

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Dead Zone
An area where a cell phone doesn’t receive a signal.

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Data Package
What cell phone companies charge for the use of internet.

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Coverage Area
The area in which a service provider offers its communication service.

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Application
Software that is downloaded for use on cell phones