why will we say hello when we lift up our phone
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We tell hello after lifting up phone, to make sure , Is the person able to listen or not...
It was first tell by Alex. Graham bell, who discovered phone, her wife's name was hello...
since then, We r repeating. hello...
It was first tell by Alex. Graham bell, who discovered phone, her wife's name was hello...
since then, We r repeating. hello...
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