French phrase
Je vous rappellerai à ~.
Meaning
I will call you back at ___.
When to use it
A polite promise to call someone back at a stated time. It suits professional and everyday conversations.
Example dialogue
Quand puis-je vous rappeler ?
When can I call you back?
Je vous rappellerai à 14 h.
I will call you back at 2 p.m.