Music on Hold crashes on 4.1.3sr16a

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May 14th, 2008
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I have trouble with Music on Hold on a 4.1.3 install. My customer uses a USB Device connected to CCM as audio source. I have enabled multicast on this audio source as well as on the server to enable local moh on SRST branch site. MRG used on HQ doesn't use multicast. It has worked for a while (a week or two) but it seems the service finally crashes with no mean to restart it but reboot the CCM.

Thanks for any help.

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ivillegas Tue, 05/20/2008 - 10:57
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The following restriction exists for multicast music on hold (MOH) when a media termination point (MTP) is invoked.

When an MTP resource gets invoked in a call leg at a site that is using multicast MOH, the caller receives silence instead of music on hold. To avoid this scenario, configure unicast MOH or Tone on Hold instead of multicast MOH.

Check list for configuring MoH multicast

Configure an audio source to allow multicasting.

Configure a music on hold server to enable multicast audio sources.

Create a media resource group and configure it to use multicast for MOH audio.

Create a media resource group list with a multicast media resource group as the primary media resource group.

Select the media resource group list created in Step 4 for either a device pool or for specific devices.


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