when i select Canada flag and type number without 204 country code, flag automatically change into Us flag and input passes +1 in country code with number.thanks for your response. you can test this scenario at intl-input-officail-site

$(".contact_form").submit(function(){
  $("#phone-full").val($("#phone").intlTelInput("getNumber"));
  console.log($("#phone").intlTelInput("getNumber"))
  return false;
});