French phrase
Appelez ~ en cas d'urgence.
Meaning
Call ___ in an emergency.
When to use it
An instruction to call a designated contact in an emergency. Common in public notices and guidance.
Example dialogue
Appelez le 15 en cas d'urgence.
Call 15 in an emergency.
D'accord, j'appelle tout de suite.
All right, I'll call right away.