Thanks all of you. You were so kind for helping me.
Finally I have my phone working as I like
It's great!
Thanks a lot again, Nobre84 and Kars.
Just a pity for Skypho this way doesn't let connect Skypho users: if someone call my Skypho number from a Skypho line, a kind voice says: "This number doesn't exist!"
When calls between Skypho users, over the same line, in regular connection, are completely free and unlimited!
But I can receive from all the other phones.
Thanks.