After the recent improvement in the rates smart yu: prepaid with an increase of MB, Vodafone He had wanted to include April not only free unlimited calling to other yu: but also SMS & MMS between yu: no limit.
An additional benefit that would make more sense if those text messages and multimedia messages could be used with users without internet on the phone but since it is only valid with customers with rate smart yu:, in practice does not imply great benefits. Still, any improvement is welcome.
Therefore, the SMS included so far will be available to send to other operators or Vodafone (without rate yu:) so that in practice the improvement can be an increase in posts initially included in each price if you have numbers yu: in your diary. Remember that joyn application reports on other yu: with your contacts.