With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccmCTIDeviceStatus
Cisco Call Manager CTI Device Status
1.3.6.1.4.1.9.9.156.1.8.1.1.5
The status of the CTI Device. The CTI Device status changes from unknown to registered when it registers itself with the local CUCM.
Back to CISCO-CCM-MIB MIB page.
IPHost Network monitor allows you to monitor ccmCTIDeviceStatus 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.