public PhoneNumber(PhoneNumber phoneNumber) : this(phoneNumber._number, phoneNumber._numberName) { }
public PhoneNumberViewModel(PhoneNumber phoneNumber) { _phoneNumber = phoneNumber; }
public PhoneNumber(PhoneNumber phoneNumber) : this(phoneNumber._number, phoneNumber._numberName) { }
public PhoneNumberViewModel(PhoneNumber phoneNumber) { _phoneNumber = phoneNumber; }