Infopath Expression error phoneNumber

Currently I'm working with Infopath in french version and trying to insert an expression and it doesn't work. I'm wondering if it's the syntax problem.

My source to do that :The instruction to create the expression for phone Number field

concat(sous-chaîne(traduire(.,"()-",""), 1, 2), sous-chaîne(traduire(.,"()-",""), 3, 3),"-", sous-chaîne(traduire(.,"()-",""), 6, 4))