With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwspOutResrcFailures
cwsp Out Resrc Failures
1.3.6.1.4.1.351.140.1.2.5.1.1.15
This object shows the number of outgoing Signaling messages for call establishment on this interface which failed because the resource requested was not available.
Back to CISCO-WAN-SVC-MIB MIB page.
IPHost Network monitor allows you to monitor cwspOutResrcFailures 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.