Cisco CallManager Express system can derive
music-on-hold (MOH) from two locations.
If flash (1) is displayed, the router is currently
picking MOH stream from an audio file configured
in flash file system. The location of the file is
provided by ccmeMohFlashFile object.
If liveFeed (2) is displayed, the router is
currently picking MOH stream from an incoming call
audio stream. Normally, a single ephone-dn would
be configured to accept liveFeed call.
ccmeEphoneDnType with moh type will specify this DN.