Paired few different phones, All worked ok to pair and place, recieve calls. Not all gave full functionality. Most blackberries including 8800 and 8830 work fully, Also paired ATT's curve 8300 and that worked perfectly. Tried pairing Nokia E65 as well as some other older Nokia and didnt get the addressbook sync. I am told Nokia Luna should work, although havent had a chance to try it. Tried few samsungs and had the same problem with synchronizing addressbook. I hear most motorola phones work well with the addressbook, at this time no personal experience with those.