iCal is a web calendar server. Anyone with a web Browser can access the Kalender on their local Intranet or Internet. Any number of Kalender can be created and accessed by any number of users. Sicherheit controls who can make calendar entries. Features include rolling up subordinate Kalender into a master calendar. The ability to define the appearance of the calendar: colors, Schriftarten, titles, headers etc. Multiple languages are supported.