How can you set the format for France Tel

I get a telephone field but I need to fix myself the right setting like : 06 02 04 05 07 
When people enter their number like : 0602040507 I always has to set a blank inbetween . Is there a solution or a condition to fix it by default ? 
Actually this field is a text field ! I am right ? 

 

You can use the Input Mask feature for Text fieldtypes to force a format. Review its parameter description carefully as it explains how to provide the masking.

I fixed this expression but nothing happen : (\d{2}\s?){5}\d{2} in the appropriate field

That's not valid REGEXP. You don't have a delimiter. You need to provide the full valid REGEXP. You can also use the string input mask feature and read the description carefully as it's a bit easier to configure than REGEX. Note the input mask doesn't apply any on-display formatting. It only assists with formatting during editing so existing values already saved won't reformat.

You're right a find the right expression : /^0[1-9]((\s)?(\d{2})){4}$/

But then on front side I got something strange in the field and cannot enter any number :

such as : %2F%5E0%5B1-9%5D%28 instead of having a with space to enter the tel number ike that .... Strange no ? Do you have any clue

The REGEXP needs to be JavaScript compatible as this is entirely done client side. It's significantly easier to make a text mask maybe give that a try otherwise you'll need to trial and error your REGEXP.