With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoCallHistoryCallingNumber
cisco Call History Calling Number
1.3.6.1.4.1.9.9.27.1.1.3.1.3
The calling number for this call. If the number is not available, then it will have a length of zero. The variable is instantiated if this is an incoming call.
Back to CISCO-CALL-HISTORY-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoCallHistoryCallingNumber on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.