The telephone came about as scientists tried to squeeze more out of the telegraph; understanding how to influence sound and send it over greater distances to more and more people.
Although it hasn't really changed much in the last hundred years much adaption was needed to accomodate new devices like fax machines and modems.
fun and games
Can you beat our games? Explode equipment to see what's inside, hear the changing sounds of telecommunications, see how telecommunications designs have changed over time or send an e-postacard.
Take a trip down memory lane with extracts of the interviews which have been recorded as part of the Connected Earth oral history programme.