I really wish there as a way, it's pathetic. I don't think I've managed to notice a single call when I'm walking... I think I might have to switch phones because of this. I've managed to work out almost everything else to be how I want it, but even with root (which I don't have yet), I can't see a way around this one. There are some apps that change vibration pattern and those might help but intensity is a no go I think... Oh well, love the phone so a bit gutted to be honest...