Pcaptix 0.6.7 for desktop is now freeware, with a rewritten PVQA v2 MOS scorer (Pearson r vs POLQA up from 0.50 to 0.92, 83% within 0.5 MOS), new impairment detectors, Wireshark hand-off, free AI analysis after registration and engine-produced call warnings.
VQ Monitor for Asterisk: a free module (res_vq_monitor.so) reporting Network MOS, packet loss, jitter, R-factor and SIP timing on every call, with a small web dashboard. Open-source module and frontend, free-EULA engine.