The conversation between human and AI assistant.
What might it mean when a phone call goes straight to voicemail?
Hmm, I see. How do I know which one it is?
You could try calling again later or sending them a text message. If they respond to the message, it's likely that their phone is not out of service, but rather set to send calls to voicemail. If you still can't reach them after several attempts, it might be worth checking with their family or friends to see if they are okay.