What part of the interrogation process does Miranda apply to?

How many one properly invoke the right to counsel? How may one properly invoke the right to silence? In assessing a Miranda related 5th Amendment issue, what constitutes an interrogation? In assessing a Miranda related 5th Amendment issue, what constitutes a waiver? In assessing a Miranda related 5th Amendment issue, what constitutes custody? What is the admissibility of illegally obtained confessions? What is the Miranda requirement of the 5th Amendment? What is the public safety exception to the Miranda requirement?