What is Analog how does my phone use it?
Analog is the term used to describe modulated sound frequency. Before you go running in terror let me explain. Analog is the way we hear. Sound is formed by creating vibrations in the air. These vibrations are called sound waves. The speed of these waves is based on how high or low the tone is. The lower the sound the slower the wave moves. An analog telephone works much in the same way that 2 tin cans and a string does. The sound wave is captured by the 1st can and the vibration travels along the string to the 2nd can where it then creates a sound wave in the air inside of can #2 which you can then hear. An analog phone works basically this same way. The vibration is captured and the vibration is amplified and sent along the phone line. This why a new line has to be ran everytime you want another phone line because only one signal can travel on that line at a time.
I realize this is a bit over simplified but hopefully it will help you with the basic concept. If you would like to understand why digital phone is different you can go to Why Digital phone is different from analog to learn more about digital phone.
