Telephones change human voice into electrical signals that reach a saterlight up in space and the saterlight change the electrical signals back into sound waves and the
sound waves reach another phone.
When you pick up the phone it connects you to a network.
When you dial a phone number the phone number is sent to the provider asking for a connection with that number.
The provider times your connection.
Telephones change human voice into electrical signals that reach a saterlight up in space and the saterlight change the electrical signals back into sound waves and the
sound waves reach another phone.
When you pick up the phone it connects you to a network.
When you dial a phone number the phone number is sent to the provider asking for a connection with that number.
The provider times your connection.