With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccmPhoneStatusUpdateType
Cisco Call Manager Phone Status Update Type
1.3.6.1.4.1.9.9.156.1.2.4.1.4
States the type of phone status change. unknown: Unknown status phoneRegistered: Phone has registered with the Callmanager phoneUnregistered: Phone is no longer registered with the callmanager phonePartiallyregistered: Phone is partially registered with the callmanager.
Back to CISCO-CCM-MIB MIB page.
IPHost Network monitor allows you to monitor ccmPhoneStatusUpdateType 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.