Since the introduction of telegraph and phones lines in the 19th century voice communication between people separated by distances each and every day has become a necessity. When phones were first introduced you would call the exchange and ask for the number and the telephone operator would connect you. Then with further developments the phone exchange became automated and you dialled the number yourself and the connection went through. Even the styles of phones have had many changes over the century from a black box to the slim line cordless phone, from jiggling the lever, through to the round dial …