Pairing iPhone 3G with Plantronics Voyager 510 bluetooth headset

The plantronics manual is available on line, and takes you thru the steps. It will pair up and work, although I haven't got it to the point where it answers automatically or where it defaults to the headset when I have it turned on.

I have a 510 and was able to pair with the iPhone with no trouble. Make sure you have the headset in pairing mode. With the headset turned on, press and hold the volume up and call button (on the boom) until LED flashes blue/red. Your phone should find the headset. Once the phone sees the headset, select it and when prompted, enter the code 0000.

I had the same problem but I seem to have fixed it now. The 510 seems to be automatically recognized by other handhelds, but not by my iphone3G. I got it to pair by following the pairing directions on the plantronics site link below. Essentially it is hold the "+volume" and the "answer call" button simultaneously until the red and blue lights alternate. Then the iphone3G pairs

http://www.plantronics.com/media/mediaresources/literature/userguides/Voyager%20510S%20Bluetooth%20Headset%20System%20pairing.pdf