jquery mask input telefone.js

 var phone_mask = function (val) {
      return val.replace(/\D/g, '').length === 11 ? '(00) 00000-0000' : '(00) 0000-00009';
    },
      phone_option = {
        onKeyPress: function (val, e, field, options) {
          field.mask(phone_mask.apply({}, arguments), options);
        }
      };

  $('#id_phone').mask(phone_mask, phone_option);