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Mobile Phone is a portable communication device, which uses cellular network technology to make and receive calls

Introduction- A Mobile Phone is a portable communication device, which uses cellular network technology to make and receive calls.
Type of mobile phones

Mobile phones can be categorised as basic phones, feature phones and smart phones.
Basic phones

They are used for making calls and messaging. They have limited feature and a small display size.
Feature Phones

Feature phones also known as multimedia phones. They have Resistive touch standard definition (SD) display. They are low-end mobile phone with lesser computing ability than smart phones. They are available in single and dual SIM models. The camera is VGA/2MP with video recording option. The basic features are browser, music player and expandable memory etc.
Smart phones

Smart phones available in Qwerty/Touch/Touch and Type. Its like a mini computer because its work Office/business. They have power full computing capability. And they have advanced camera with HD video recording. In this available additional features like video calling, A-GPS, MHL, NFC etc.And this phones is multiple service providers for GSM and CDMA.
Mobile Networks

There exist 2 types of services-GSM and CDMA. worldwide GSM share is 76% and CDMA 24%.
Frequency bands

Bands are cellular frequencies designated for operation of gem services. Different country use different bands. Mobile handset may only be able to receive certain frequencies. There are four different type available.
Mobile internet connectivity

Mobile technology is entering its most advance generation with the roll out of 3g/4g LTE offering faster connectivity.

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