Make sure in the System Settings -> System wide screen that MOH and MOH on transfer are checked and click Apply.

That should do it. When MOH is enabled you might notice the switch ports just light up nearly solid with traffic. This is because MOH is a multicast. The IT person might mention something.

We have had the occasional system with a bad MOH port too.

A mono plug is best for the input. I have found there is sometimes a "sweet spot" on these NBX jacks.

What are you using for an input?


Michael Meyer