Phone Number Validation (C#)

[Deathnote]

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Guyz help...I need a regular expression that can validate an international number.

Acceptable formats

(+63)-(123)-(234-5676)
+63-123-234-5676
+631232345676
+1-1-234-5676

Can anyone please tell me the regular expression for this...will really appreciate

[Deathnote]

Got It....If anyone needs it i have the code here it also includes email validation

 public bool isEmail(string inputEmail)
        {
            //Checking for email validity
            //___________Local Part Valid Entries______________
            //Uppercase and lowercase letters
            //The digits 0 through 9
            //The characters , ! # $ % & ' * + - / = ? ^ _ ` { | } ~
            //The character "." provided that it is not the first or last character in the local-part
            //Local Part Regural Expression ^[a-z0-9_\+-]+(\.[a-z0-9_\+-]+)*


            //___________Domain part valid entries__________________
            //Uppercase and lowercase letters
            //The digits 0 through 9
            //Regular Expression @[a-z0-9-]+(\.[a-z0-9-]+)*\.([a-z]{2,4})$

            const string expression = @"^[a-zA-Z0-9_\+-]+(\.[A-Za-z0-9_\+-]+)*@[a-zA-Z0-9-]+(\.[A-Za-z0-9-]+)*\.([A-Za-z]{2,4})$";
            Regex regex = new Regex(expression);
            return regex.IsMatch(inputEmail);
        }
        public bool isNumber(string number)
        {
            const string expression = @"\(\+\d{1,4}\)\(\d{1,5}\)\(\d{3}-\d{4}\)";
            Regex regex = new Regex(expression);
            bool ans = regex.IsMatch(number);
            //string[] grp = regex.Split(number);
            //Console.WriteLine(grp.ToString());
            return ans;
        }
        public bool rareValid(string inputEmail)
        {
            const string expression = @"^[a-z0-9,!#\$%&'\*\+/=\?\^_`\{\|}~-]+(\.[a-z0-9,!#\$%&'\*\+/=\?\^_`\{\|}~-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*\.([a-z]{2,})$";
            Regex regex = new Regex(expression);
            return regex.IsMatch(inputEmail);

        }

[tomicrow]

Here is a version that only matches 10 digit phone numbers

/(??:\+?1\s*(?:[.-]\s*)?)?(?\s*([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9])\s*)|([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]))\s*(?:[.-]\s*)?)([2-9]1[02-9]|[2-9][02-9]1|[2-9][02-9]{2})\s*(?:[.-]\s*)?([0-9]{4})/

Email validation

"^([0-9a-zA-Z]([-\\.\\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\\w]*[0-9a-zA-Z]\\.)+[a-zA-Z]{2,9})$";

C# email validation

crow