Cisco SPA509G Administration Guide - Page 237

Cisco SPA IP Phone Field Reference Info Tab B Parameter Bytes Recv Mapped RTP Port Media Loopback Decode Latency Jitter Round Trip Delay End System Delay Packets Lost Packet Error Loss Rate Discard Rate Burst Duration Gap Duration R Factor Description Number of bytes received. The port mapped for Real Time Protocol traffic for the call. If the call is a loopback call, displays the loopback mode (source or mirror) and type (media or packet). If the call is not loopback, the field appears blank. Number of milliseconds for decoder latency. Number of milliseconds for receiver jitter. Number of milliseconds for delay in the RTP-to-RTP interface round trip. Number of milliseconds for delay in the internal round trip within the reporting endpoint. Number of packets lost. Number of invalid packets received. The fraction of RTP data packets from the source lost since the beginning of reception. Defined in RFC 3611- RTP Control Protocol Extended Reports (RTCP XR). The fraction of RTP data packets from the source that have been discarded since the beginning of reception, due to late or early arrival, under-run or overflow at the receiving jitter buffer. Defined in RFC 3611-RTP Control Protocol Extended Reports (RTCP XR). The mean duration, expressed in milliseconds, of the burst periods that have occurred since the beginning of reception. Defined in RFC 3611-RTP Control Protocol Extended Reports (RTCP XR). The mean duration, expressed in milliseconds, of the gap periods that have occurred since the beginning of reception. Defined in RFC 3611-RTP Control Protocol Extended Reports (RTCP XR). Voice quality metric describing the segment of the call that is carried over this RTP session. Defined in RFC 3611-RTP Control Protocol Extended Reports (RTCP XR). Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 236