I have a Bogen paging system hanging off port 1 of a CO Trunk card in a prologics. I have some analog sets in a warehouse that cause unbareable feedback over the paging system if you page from them. I cant move the analog phones any futher from the horns than they already are and I dont want to have to get a digital playback recorder so my question is if I replace the analog sets with digital sets will I still have the same feedback?