German phrase
Herr ~ ist nicht erreichbar.
Meaning
Mr. ___ cannot be reached
When to use it
Someone is unavailable. It often leads to a request for a message or callback.
Example dialogue
Hast du Herrn Becker angerufen?
Did you call Mr. Becker?
Herr Becker ist nicht erreichbar.
Mr. Becker cannot be reached.