I have a UC560 and we have been experiening extremely terrible voice quality on outgoing calls. Customers have told us we sound statiky and breaking up... people have even hung up its so bad. Sometimes we resort to our cell phones for calls.Internall...

So I cannot figure this one out for the life of me. My network is running all 7942 phones and has been. I have three EWS 520 PoE Switches that manage the phones along with a UC560 w/FXO. I have been running this with no problems. All of a sudden, two...