private PhoneNumber(PhoneNumberBuilder phoneNumberBuilder)
{
Number = phoneNumberBuilder.Number;
CountryCallingCode = phoneNumberBuilder.CountryCallingCode;
}
/// <summary>
/// Adds a new phone number.
/// </summary>
/// <param name="expression">Phone number expression to construct a new phone number.</param>
public virtual void AddPhoneNumber(Action<IPhoneNumberExpression> expression)
{
var builder = new PhoneNumberBuilder(this);
expression(builder);
_phoneNumbers.Add(builder.Build());
}
