With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdspXNumberOfBearerCalls
Cisco Digital Signal Processing X Number Of Bearer Calls
1.3.6.1.4.1.9.9.86.1.2.2.1.1
The current number of bearer calls on the DSP.
Back to CISCO-DSP-MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor cdspXNumberOfBearerCalls on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.