With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccmMaliCallCallingDeviceName
Cisco Call Manager Mali Call Calling Device Name
1.3.6.1.4.1.9.9.156.1.10.16
The edge device name through which the malicious call originated or passed through.
Back to CISCO-CCM-MIB MIB page.
IPHost Network monitor allows you to monitor ccmMaliCallCallingDeviceName 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.