Thanks for the answer, I was aware about the cockpit and I was already monitoring the page, but actually the phone was able to make calls with such package only after some hours . Then enabling can takes some hours, even if you try to switch off and restart the phone , nothing changes and Swisscom doesn't send a text to notify that package has been activated , simply you try after some time to verify . This is a gap that should be improved in my opinion.
Thanks for your feedback.