Regular expression so far: 9?-?\d{4}-?\d{4} // not allowing free calls yet...
C# A regular expression to mat...
by https://www.google.com/accounts/o8/id?id=AItOawkvSzcZPVNSb5mjYOwoEqyN3vwh1shcI84,
March 16, 2012 12:11,
14 refactorings, tagged with validation, regex, hpone number, free call, 9 digit
9 or 8 digit phone numbers ...