French phrase
Je vous rappellerai ~.
Meaning
I will call you back ___.
When to use it
Promises to call someone back after receiving news. It is a polite, future-oriented assurance.
Example dialogue
Avez-vous des nouvelles du dossier ?
Do you have any news about the case?
Je vous rappellerai si j'ai des nouvelles.
I will call you back if I hear anything.