private function pushPhoneNumberToCache($rawPhone, $contactName, $country)
{
$phoneNb = PhoneNumberFormatter::format($country, $rawPhone);
$this->contacts[$phoneNb] = $contactName;
// Inverted contacts
if (!isset($this->contactsInverted[$contactName])) {
$this->contactsInverted[$contactName] = array();
}
array_push($this->contactsInverted[$contactName], $phoneNb);
}