Tool Description: RTCP XR - RFC 3611
RTCP XR - RTP Control Protocol Extended Reports - provides a rich set of data for Voice over IP management. The data for these extended reports can be provided by technology such as VQmon embedded into IP phones and gateways and sent periodically during the call to provide real-time feedback on call quality.
RFC 3611: RTP Control Protocol Extended Reports (RTCP XR)
The VoIP Metrics payload is shown below:
| Network Packet Loss | Packets discarded due to jitter | Density of lost/ discarded packets in burst periods | Density of lost/ discarded packets in gap periods |
| Average duration of burst periods (mS) | Average duration of gap periods (mS) | ||
| RTP Round Trip Delay (mS) | End System Delay (mS) | ||
| Signal Level (dBm) | Noise Level (dBm) | Residual Echo Return Loss (dB) | Gmin - typically 16, which classifies >5% loss as burst |
| R factor | External R factor | MOS LQ | MOS CQ |
| PLC and Jitter Buffer Config | Reserved | Average jitter buffer delay (mS) | |
| Current max jitter buffer delay (mS) | Max jitter buffer size (mS) | ||
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