With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
csbPerFlowStatsRTCPPktsRcvd
Cisco Session Border Per Flow Stats RTCP Packets Rcvd
1.3.6.1.4.1.9.9.657.1.5.1.13
The number of RTP packets received by the remote end point from this MG on this flow. Comparing this with the local number of RTP packets sent from this MG to the remote endpoint gives an indication of how many outgoing packets were dropped on this leg of the call. This information is from RTCP packet. Not all endpoints report this statistic, if it is not available it will be set to zero. This statistic will not be available for signaling flows.
Back to CISCO-SESS-BORDER-CTRLR-CALL-STATS-MIB MIB page.
IPHost Network monitor allows you to monitor csbPerFlowStatsRTCPPktsRcvd on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.