Do your pots lines arrive on copper or on a channel bank? If they arrive on copper pairs it may be a loop current problem. If you are at some distance (30000 feet) or more from the serving central office you may need a range extender on each line. This is provided by the telco at no charge if you meet the loop requirments. In my 30 plus years with a major LEC I have seen many transmission problems fixed by adding a range extender, of course thats if you don't have other problems on the copper pairs like missing load coils or incorrect load coil spacing. If its just the background noise use a noise cancelling handset.



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Louisa Telephone Service