Do you ever notice you keep getting missed calls too ? It’s either the tight fitting case decided to touch Ignore on the screen while you are pulling out your phone or you just can’t pick up the phone on time.
Try calling yourself. You will notice that your phone light up with incoming call displayed but the ringtone and vibration kicks in after 1-2s. By that time, the other party has already been waiting for 3-4s ?
Taking the time to take the phone from your pocket or case, it’s a good 5-6s. This lag comes from the Touch Flo skin for Phone. I disabled the Touch Flo skin, when I call my phone, it rings without lag.
Disable it by using the Advanced Configuration Tool, Under Phone, change “Phone Skin” to disabled
As for the case problem, you need answerkey disabler http://code.google.com/p/answerkeysdisabler/
this will lock your screen when there’s an incoming call, so you can use your hard keys to answer the phone.