I have not programmed the 848 but most of the Pana KSUs have a trunk (CO)connection program. If it is set High to Low you were accessing none working COs. Program out those COs not in use (Disable). Also I believe from what I have read about this product that the wireless sets are restricted to only so many units (3?)that can be used at one time, restricting the others. Check into the operations part of the manual.


Ken
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