As it currently stands, you need to say “Ok, Google” or “Hey, Google” each and every time you ask your Google Home a question or issue a command to it. With Continued Conversations, your Google Home will continue listening for a short period (around 8 seconds) after you first begin talking to it.
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.