From: sevana on
AQuA technology powered Asterisk voice qualty monitring solution:

- Asterisk-powered dialer software
- Web Interface
- UNIX/Linux Cron-based Schedule Logic
- Open-Source Code
- Graphing Monitoring Stats
- MySQL Database for Call Records
- MOS
- PESQ
- R-Value
- Volume / Amplitude Difference.

More info, screenshots and demo are here:

http://www.sevana.fi/aqua-powered-asterisk-voice-quality-monitoring-solution.php