French phrase
En cas d'urgence, je suis joignable au ~.
Meaning
In case of emergency, I can be reached at ___.
When to use it
States that contact is possible in an emergency. Polite and suitable for work or less familiar contacts.
Example dialogue
Si j'ai un souci, comment on te contacte ?
If I have a problem, how can I contact you?
En cas d'urgence, je suis joignable au +33 6 12 34 56 78.
In case of emergency, I can be reached at +33 6 12 34 56 78.