BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//The Horde Project//Horde iCalendar Library//EN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTART:20070315T121020Z
DTEND:20070315T132001Z
DTSTAMP:--------T------Z
UID:20070315143732.4wlenqz3edq8@horde.org
SUMMARY:busy
ORGANIZER;CN=joe:mailto:joe
CLASS:PRIVATE
STATUS:TENTATIVE
TRANSP:OPAQUE
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Jürgen
  Doe":mailto:juergen@example.com
ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=ACCEPTED;CN=Jane Doe:
ATTENDEE;ROLE=NON-PARTICIPANT;PARTSTAT=DECLINED;CN=Jack
  Doe:mailto:jack@example.com
ATTENDEE;ROLE=NON-PARTICIPANT;PARTSTAT=TENTATIVE:mailto:jenny@example.com
RRULE:FREQ=MONTHLY;INTERVAL=1
EXDATE:20070414T220000Z,20070614T220000Z
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:busy
TRIGGER;VALUE=DURATION:-PT10M
END:VALARM
END:VEVENT
END:VCALENDAR
