Decline call in android

Question

How to automatically decline the incoming call from app in android after letting the call to ring for 5 secs ?

Answer 1

check this link: Android: Taking complete control of phone(kiosk mode), is it possible? How?

 try{

                TelephonyManager manager = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE);
                Class c = Class.forName(manager.getClass().getName());
                Method m = c.getDeclaredMethod("getITelephony");
                m.setAccessible(true);
                ITelephony telephony = (ITelephony)m.invoke(manager);
                telephony.endCall();
            } catch(Exception e){
                Log.d("",e.getMessage());
     }