French phrase
Puis-je vous appeler au ~ ?
Meaning
May I call you at the ___?
When to use it
A polite request to call someone at a place. It suits professional or other formal situations.
Example dialogue
Puis-je vous appeler au bureau demain matin ?
May I call you at the office tomorrow morning?
Oui, demain matin je serai au bureau.
Yes, I'll be at the office tomorrow morning.