Here's how it works:
* Sound waves hit the microphone: When you speak into a telephone, your voice creates sound waves that travel to the microphone.
* Microphone converts sound to electrical signals: The microphone contains a diaphragm that vibrates in response to the sound waves. This vibration changes the electrical current flowing through the microphone, creating an electrical signal that represents your voice.
* Electrical signal travels to the earpiece: The electrical signal travels through wires to the earpiece on the other end of the line.
* Earpiece converts electrical signals to sound: The earpiece also has a diaphragm. The electrical signal causes this diaphragm to vibrate, creating sound waves that you hear as the other person's voice.
So, while the entire telephone isn't vibrating, the key element that vibrates to transmit and receive sound is the diaphragm.
