Avoid sio2PhysicCollisionCallback calls

I have two SIO2objects which shall interact with the rest of the physics world, but not with each other. For the combination of these two particular objects, I want to disable collision tests which eventually lead to calling sio2PhysicCollisionCallback much more often than I need it.

Any ideas how I could manage that?

Best,
Matt

Good question, honestly I never had to do that, but Im curious on how to do that... checkout the bullet SDK... or post on the bullet forum... if someone have the answer please help matt...

Cheers,