You pick up one end, dial a number, and listen. They're used as communication devices.
People use telephones
We use telephones to talk with. These days, people use cellphones .
People today can use old telephones ( 2012 ) but they are most likely rare.
Not many people used it because it is expensive.
because they hate telephones
Telephones are about instant communication with other people wherever they are.
They used to send letters 5o the people they wanted to talk to.
Through things such as skype telephones have become unnecessary for some people who live of the internet. Though for many a telephone is still central so the use has only been changed in some situations. Many people still consider the telephone superiour.
something you use for telephones
By mail
you call people with the telephone
to communicate with the large distance people