fcrochik,
Does selecting "All(reject private calls)" prevent you from receiving incoming calls while already on the phone? I don't know if it is the program but it seems my calls are re-routed to my google voice whenever I am on the phone and someone else is trying to call my mobile.

The issue may not be with Mycontacts but it will be nice if you can check into that because it is the only thing I changed recently on the phone.