[theirishscion]

If you're confident that you've reset the Hands Free Link, then the next step I'd try is pairing a different phone with it, see if that works. If it does, then we can be fairly confident that the problem lies with the iPhone, in which case, first shut it down and restart it (press and hold power button type shutdown) and if that doesn't do it, do a settings resets on the phone. That would be Settings --> General --> Reset --> Reset All Settings. If a Reset All Settings doesn't work, and you're confident that the Hands Free Link is receptive (checked with a different handset) then your only real next step is an Erase All Content And Settings which basically resets the phone to how you got it from the factory. Keep in mind that this is destructive and you'll likely have to put all the stuff back on your phone manually rather than restoring from backup. I don't imagine you'll need to do it though, and I suggest you don't. The Reset All Settings option will force you to re-pick your ring tone and a bunch of other little phone settings but won't muck about with your data.