How did the telephone diffrent the telegraph?

A telegraph only sends information to a person via different lengths of 'presses', and uses a morse code, which would be deciphered on the other end to make it a message.

A telephone allowed a person to speak directly to another through long distances without having to talk face to face.

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If your answers look like this a) expansion through conquestb) development of a calendar c) development of a written language d) creation of a large road workthen the answer is dhope it