VQmon/EP monitors voice calls and produces call quality estimates that can be reported as MOS scores and R factors through the media path using RTCP XR (RFC 3611) and SIP RTCP summary reports (RFC 6035). VQmon/EP detects packet loss and jitter buffer discard events, extracts key information from DSP software, and produces real-time call quality scores and diagnostic data. VQmon/EP is widely used in the industry and has been integrated into the products of over 50 equipment manufacturers. VQmon/EP generates listening and conversational quality MOS scores and R factors and a wide range of diagnostic data, making these available through an API as raw metrics, RTCP XR, and SIP RTCP Summary Report payloads. In addition, VQmon/EP provides real-time call quality thresholding, supporting either alert generation or automatic configuration.
- Listening and conversational quality MOS scores (MOS-LQ, MOS-CQ)
- Listening and conversational quality R factors (R-LQ, R-CQ)
- Burst and gap call quality scores (R-Gap, R-Burst)
- Narrowband and wideband R-factor and MOS scores
- Degradation factors reports severity of quality degradation due to packet loss, discard, delay, codec, and other factors
- Supports RTCP XR and SIP RTCP summary reports
- Burst and gap loss/discard statistics
- Supports VoIP, TDM, and hybrid TDM/VoIP applications
- Support for packet, frame, and time-based jitter buffers
- Support for a wide range of ITU, cellular, industry-standard, and proprietary codecs
- Cumulative and interval metrics
- Complies with or supports ITU-T P.564, G.107, ETSI TS101329-5 Annex E, RFC 3611, RFC 6035
