i am using them too and also had the choppy problem.... it turned out that my choppy problem was the router i was using. i purchased two diffrent basic linksys routers and both had issues... so i decided to give the biz addition a try.. it fixed my choppy problems but have been faced with a whole mess of new issues... now i have alot of dropped calls which i am in the process of narrowing down where its the phone, computer, software or provider... i'll let you know how i make out...