If you want both options of typing and talking to Siri, you can enable the “Hey, Siri” command so that you can utter those magic words to speak to Siri and long-press the Home button to type to Siri. You’ll find the Hey Siri setting by going to Settings > Siri & Search.
When you call a dead phone does it ring?
Answer: A: With a dead battery it should not ring but it should go to voicemail directly.