What exactly is Internet telephony?
Internet telephony happens when people use voice to communicate over the Internet. A common example of Internet telephony is the use of instant messengers for voice chats. Just like instant messengers let us type out text messages to each other, they can let us send out voice messages, very similar to the way we do it on the phone. But note that the instant messenger voice chat is happening between one PC and another. This kind of communication is called PC-to-PC Internet telephony. What is more complex and difficult to do is PC-to-phone Internet telephony. This involves using your PC to make a call to any regular phone number! It is difficult because when you make a call from a PC to a regular telephone, the company that operates the telephone connection has to pick up your voice from the Internet and carry it over the regular phone network. Then it has to carry its subscriber’s voice back to the PC caller in such a way that it can travel across the Internet. Is it illegal? Despite ru
