After a cuople of tests it works fine.
New observations/questions/suggestions:
* When I add a new action In Agenda, in WebCalebdar appears the time and the name of the afected third, but in my opinion, it shall be better to show the action title (and after the third).
In the other side, adding a WebCalendar event appears in Agenda like "event" (Cita) but with no title or else.
In both cases there is right and complete information into.
* When I change or delete an event in Agenda it is not changed/deleted in WebCalendar and viceversa?.
* The Agenda information pass to WebCalendar without Unicode?.
Thank you.