Regex to match all us phone number formats

 public bool IsValidPhone(string Phone)
    {
        try
        {
            if (string.IsNullOrEmpty(Phone))
                return false;
            var r = new Regex(@"^\(?([0-9]{3})\)?[-.●]?([0-9]{3})[-.●]?([0-9]{4})$");
            return r.IsMatch(Phone);

        }
        catch (Exception)
        {
            throw;
        }
    }

\(?\d{3}\)?-? *\d{3}-? *-?\d{4}