IAX protocol simplifies VoIP

One reason analog telephones are still around is that you can buy an inexpensive model, plug it in and begin making calls right away. When was the last time you were able to do that with a new IP phone? Most VoIP protocols are hard to configure in certain environments, making it difficult to get many new VoIP products working out of the box.

After Mark Spencer created Asterisk , the open source PBX, he started to see how this lack of simplicity could be a huge barrier to the VoIP market. In response, he created a new protocol called IAX