With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccapAppGblHisIPInCallInHandoff
Cisco Call Applications Application Global History IP In Call In Handoff
1.3.6.1.4.1.9.9.146.1.5.25
Total number of incoming IP call legs that were handed to this gateway, with the handoff operation, performed by another gateway.
Back to CISCO-CALL-APPLICATION-MIB MIB page.
IPHost Network monitor allows you to monitor ccapAppGblHisIPInCallInHandoff on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.