The message sends as normal, and you don’t get an error message. This is no help at all for clues. If you have an iPhone and try to send an iMessage to someone who has blocked you, it will remain blue (which means it’s still an iMessage). However, the person you‘ve been blocked by will never receive that message.
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.