Phone numbers in Outlook

[Casey]

I am trying to find the setting that determines if Outlook
automatically inserts the - in phone numbers that are
inputted into Contacts. For instance, when I enter
5555555555 at times and on different computers Outlook
will automatically insert the - into the phone number so
it will look like this, (555) 555-5555. But for some
reason that auto feature has stopped working and I can not
find where to change the setting back. Can you help?

 

[Russ Valentine [MVP-Outlook]]

Outlook will mask the phone number whenever you have your dialing location
set correctly.