With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cSipStatsConnTCPCreateFailures
Cisco Sip Stats Connection TCP Create Failures
1.3.6.1.4.1.9.9.152.1.2.10.5
This object reflects the total number of connection create failures for TCP since system startup.
Back to CISCO-SIP-UA-MIB MIB page.
IPHost Network monitor allows you to monitor cSipStatsConnTCPCreateFailures 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.