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this was the first ever telephone
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this phone had a dial pad that required you to spin it to dial the numbers.
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this telephone had a pad of numbers that you could simply wouch the numbre to dial it.
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this phone had a bigger inprovement on the push button
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this telephone has letters on it to save numbers in it.
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these phones had a keyboard and a touch screen with a memory card to save numbers.
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this phone had inprovements to the touch screen and keyboard
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this phone was fully touch screen with a pop up keyboard
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this phone had more improvements to the touch screen
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this phone had a full waterproof and shatter proof screen