How does Internet Telephony works?
It operates by converting your voice signal from your telephone into a digital signal that can then be transmitted over the Internet. The digital signal is then converted at the other end back to a voice signal that the other party can hear. When you use a phone with an adapter connected to the computer the calls are placed just like a regular telephone. You first hear a dial tone then the call is made. You are also able to place a call directly from your computer using a conventional telephone or microphone.
