With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccmVMailDevTimeLastStatusUpdt
Cisco Call Manager V Mail Device Time Last Status Update
1.3.6.1.4.1.9.9.156.1.12.1.1.9
The time the status of the voice messaging device changed.
Back to CISCO-CCM-MIB MIB page.
IPHost Network monitor allows you to monitor ccmVMailDevTimeLastStatusUpdt 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.
