With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cCallHistoryTransmitPackets
Cisco Call History Transmit Packets
1.3.6.1.4.1.9.10.25.1.4.3.1.15
The number of packets which were transmitted while this call was active.
Back to CISCO-DIAL-CONTROL-MIB MIB page.
IPHost Network monitor allows you to monitor cCallHistoryTransmitPackets on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.