After much struggling i finally got my Plantronic Voyager 815 to work with my G1. Actually i was the dork, but at least it's working now. It works alright with regular telephone calls through my Telcel provider and now i'm trying to figure out if it will work with Sipdroid internet calls. Anybody have this working? Is it even possible? Would i have to root the phone / install an external antenna / obtain a Ham radio operator license? Have a great afternoon!