!Validator.isPhoneNumber(phone)) {
throw new AddressPhoneException();
}
else if (Validator.isNotNull(fax) && !Validator.isPhoneNumber(fax)) {
throw new AddressFaxException();
}
else if (Validator.isNotNull(cell) && !Validator.isPhoneNumber(cell)) {
throw new AddressCellException();
}
}