With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cvCallVolPeerOutgoingCalls
Cisco Voice Call Vol Peer Outgoing Calls
1.3.6.1.4.1.9.9.63.1.3.8.4.1.2
This object represents the total number of active calls that has selected the dialpeer as an outgoing dialpeer.
Back to CISCO-VOICE-DIAL-CONTROL-MIB MIB page.
IPHost Network monitor allows you to monitor cvCallVolPeerOutgoingCalls 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.