Telephone interchanges electrical signals into sound wave signals and sound wave signals into electrical signals "within fraction of second".

Why don't short film makers in India produce short film on "TELEPHONE" invention hard work and how telephone works ? 

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Media is antisocial by nature of existence.So any accused need not have duty to answer media questions. Vijay Mallya ! If media exceeds its limit,then media should be in jail. This is my order.