Did the telephone create any new problems?

In a way, yes. before the invention of a telephone, there was something called the pony express where messengers had to ride across the country on horseback to deliver. now, you just pay a monthly fee and you can talk to anyone. mobile phones further increase the usefulness of a telephone because it works almost anywhere. these days, mobile phones are like little computers. however, people have become less dependent on phones because of services such as e-mail or chat rooms.

before, phones used vibrations through a wire to transfer voices. these days, they can use fiber optics, which is almost the same thing, but with light.