With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccvpIvrIntMaxActiveCalls
Cisco Customer Voice Portal Ivr Interval Max Active Calls
1.3.6.1.4.1.9.9.590.1.6.3.1.4
The interval maximum active calls object is a metric that indicates the maximum number of simulteneous calls being processed by the IVR service during this interval.
Back to CISCO-CVP-MIB MIB page.
IPHost Network monitor allows you to monitor ccvpIvrIntMaxActiveCalls 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.