Has anyone else experienced this? What could be the cause? Why does it beep first...

You are in chat

I'm in the same boat right now, I called a friend. But she called me back.

Olga I also think the part about the black list is wrong.

Either it's a personal emergency, or you tapped the wrong button.

In the blacklist, it means

Something's wrong with the connection; it seems there are issues. When in emergency mode, the line stays busy indefinitely.