With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccvpSipIntNewCalls
Cisco Customer Voice Portal Sip Interval New Calls
1.3.6.1.4.1.9.9.590.1.6.1.1.3
The interval new calls object is a metric indicating the number of SIP INVITE messages received by CVP since system start time. The object value also includes failed calls as well as calls rejected due to the SIP service being in an 'out of service' state.
Back to CISCO-CVP-MIB MIB page.
IPHost Network monitor allows you to monitor ccvpSipIntNewCalls 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.