With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ctxResourceCallSetupFailures
ctx Resource Call Setup Failures
1.3.6.1.4.1.9.9.758.1.3.1.1.4
This object specifies a counter that increments every time a call fails to be setup correctly to this resource. Miss-dialed numbers are excluded and not considered a failure.
Back to CISCO-TELEPRESENCE-EXCHANGE-SYSTEM-MIB MIB page.
IPHost Network monitor allows you to monitor ctxResourceCallSetupFailures 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.