With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoCallHistoryReceivePackets
cisco Call History Receive Packets
1.3.6.1.4.1.9.9.27.1.1.3.1.16
Number of packets received when this call was up.
Back to CISCO-CALL-HISTORY-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoCallHistoryReceivePackets 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.