public function updateCMSFields(FieldList $fields)
{
$fields->AddFieldToTab('Root.Main', new CountryDropdownField('CountryCode', _t('LibPhoneNumberExtension.CountryCode', 'Country')));
$fields->AddFieldToTab('Root.Main', $phonefield = new LibPhoneNumberField('PhoneNumber', _t('LibPhoneNumberExtension.PhoneNumber', 'Phone')));
$phonefield->setCountryField('CountryCode');
$fields->AddFieldToTab('Root.Main', $mobilephonefield = new LibPhoneNumberField('MobilePhoneNumber', _t('LibPhoneNumberExtension.MobilePhoneNumber', 'Mobile Phone')));
$mobilephonefield->setCountryField('CountryCode');
return $fields;
}
