With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccmCTIDeviceTimeLastStatusUpdt
Cisco Call Manager CTI Device Time Last Status Update
1.3.6.1.4.1.9.9.156.1.8.1.1.11
The time the status of the CTI device changed.
Back to CISCO-CCM-MIB MIB page.
IPHost Network monitor allows you to monitor ccmCTIDeviceTimeLastStatusUpdt on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.