I have to work out in the boonies, where cellular reception can be spotty (I have Cingular). Most of the other people out here have external antennas that plug into a port on their phone to get a better signal. Unfortunately, my phone, a Nokia 6620, doesn't have such a port. The only options I could find on the internet for attaching an antenna to it are gadgets that stick onto the back of the phone, and provide a standard antenna connection. I'm kinda dubious as to whether they actually work, though. Any experience with these things, or advice on other things to do?