With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccmMediaDeviceDevicePoolIndex
Cisco Call Manager Media Device Device Pool Index
1.3.6.1.4.1.9.9.156.1.6.1.1.6
A positive value of this index is used to identify the Device Pool to which this MediaDevice entry belongs. A value of 0 indicates that the index to the Device Pool table is Unknown.
Back to CISCO-CCM-MIB MIB page.
IPHost Network monitor allows you to monitor ccmMediaDeviceDevicePoolIndex 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.