With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccmH323DevUnregReason
Cisco Call Manager H323 Device Unregistered Reason
1.3.6.1.4.1.9.9.156.1.11.1.1.32
The reason code associated with unregistered H323 Device. This is applicable only for H323 devices with gatekeepers configured.
Back to CISCO-CCM-MIB MIB page.
IPHost Network monitor allows you to monitor ccmH323DevUnregReason on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.
