I updated my Google Nexus S to Android 4.0.3. Now the call settings seems to be missing and video calling is not working. When I hard boot the device it shows "LOCK STATE -LOCKED".
migrated from stackoverflow.com Jan 8 '12 at 3:32
Though I'm responding late, I too faced this problem today and could figure the call setting by following procedure below:
Is that what you're looking for? HTH