With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
csbCallStatsRTPOctetsDiscard
Cisco Session Border Call Stats RTP Octets Discard
1.3.6.1.4.1.9.9.657.1.2.1.20
This object indicates the number of RTP octets discarded by the SBC.
Back to CISCO-SESS-BORDER-CTRLR-CALL-STATS-MIB MIB page.
IPHost Network monitor allows you to monitor csbCallStatsRTPOctetsDiscard on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.