With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cvVoIPCallHistoryCallId
Cisco Voice Vo IP Call History Call Id
1.3.6.1.4.1.9.9.63.1.4.2.1.46
This object represents the call identifier for the VoIP leg, which was assigned to the call.
Back to CISCO-VOICE-DIAL-CONTROL-MIB MIB page.
IPHost Network monitor allows you to monitor cvVoIPCallHistoryCallId on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.