The volume button increases volume in one direction in portrait mode and the opposite direction in landscape mode. If we look at the visualization of volume this is the way it should be.

But when you are making a call you are not looking at the screen, and the N900 switches between landscape and portrait mode depending upon how you tilt your head. I have seen others complaining about the volume going back to 50% upon reset but none have complained about this. Is it just my n900 accelerometer being super-sensitive or am I the only person who is not holding there head straight

So the question is "is there a way to set and lock down call volume and disable volume keys just for the phone app"

vijayv
Do not be afraid: you are not a strange beast. It took me a while before I realized this strange behavior.

There's an option to set the phone for prtrait-only, I used that and it pretty much solved the disconfort.