I have a match expression for outbound calls as “\d{10}”. It’s fine for unformatted numbers. Not knowing any better, I created another extension to handle numbers formatted like XXX-XXX-XXXX, which is easier to read and exists in one hard phone’s phonebook.

 

It looks like: “^1?(\d{3})-(\d{3})-(\d{4})$”. But I can see making many extensions for different formats.