How to programmatically answer a call

Question

I know this has been asked before, but at this time the answer of the post is not true. Vringo and other apps does answer the phone by pressing a button on their app, so the

Answer 1

Check out this source:

http://code.google.com/p/auto-answer/source/browse/trunk/src/com/everysoft/autoanswer/AutoAnswerIntentService.java

They send a Bluetooth "keydown" event to answer the call!