why is mobile called all in one
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as we get many applications at one single device.We can call,Sms, shop and now we can also pay money with the help of it .....
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Mobile phones are often referred to as feature phones, and offer basic telephony. ... Basic mobile phone services to allow users to make calls and send text messages. All GSM phones use a SIM card to allow an account to be swapped among devices. Some CDMA devices also have a similar card called a R-UIM.
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