What exactly do hear in the absence of MoH? Do you hear tone on hold?
The first check as specified within the previous post is that the media streaming service is activated and running on the designated MoH server.
Secondly check that the run flag is still enabled on the MoH Server configuration, and that there are available MoH audio sources listed here.
Depending on whether you are using Unicast or Multicast verify through performance monitor whether or not a MoH resource is allocated or shown as active. This should give you an indication as to whether the resource is being requested successfully and that nothing is heard. Or that no resources are being allocated.
In the first scenario, if MoH resources are shown as allocated when a test call is made, then you need to verify your audio sources, especially if you hear tone on hold.
In the second scenario, if no resources are shown as being used, then verify your media resource groups and list which are associated with the IP endpoint either directly or on the device pool.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...