With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccmeMohFlashMulticastIPAddr
Cisco Call Manager Express Moh Flash Multicast IP Address
1.3.6.1.4.1.9.9.439.1.1.21
This object indicates the destination IP address for multicast of the audio stream from Flash file, that is designated for MOH. If ccmeMohFlashFile is zero length this object has no relevance. Cisco IP phones don not support multicast at 224.x.x.x addresses.
Back to CISCO-CCME-MIB MIB page.
IPHost Network monitor allows you to monitor ccmeMohFlashMulticastIPAddr 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.