I wonder how it sounds compared to G.729. I worked for a company 20 years ago that had a modified G.729 codec that could go below 8kbps but sounded decent. We

I wonder how it sounds compared to G.729. I worked for a company 20 years ago that had a modified G.729 codec that could go below 8kbps but sounded decent. We used this for VoIP over dial-up Internet, talk about low bandwidth. Turns out some of the more interesting bits were in the jitter buffer and ways to manage the buffer. Scrappy connections deliver packets when they can and there is an art to managing the difference between the network experience and the user experience. For communications, you really need to manage the user experience.