With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccmeEphoneDnChDiscAtAlert
Cisco Call Manager Express Ephone Dn Channel Disc At Alert
1.3.6.1.4.1.9.9.439.1.3.1.1.8
Total number of calls that were placed from this channel and were disconnected during call alerting stage.
Back to CISCO-CCME-MIB MIB page.
IPHost Network monitor allows you to monitor ccmeEphoneDnChDiscAtAlert on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.