BEGIN:VAVAILABILITY
UID:test
DTSTART:20060216T000000Z
DTEND:20060217T000000Z
BEGIN:AVAILABLE
UID:test1
DTSTART:20060216T090000Z
DTEND:20060216T120000Z
DTSTAMP:20060215T000000Z
SUMMARY:Available in the morning
END:AVAILABLE
BUSYTYPE:BUSY
DTSTAMP:20060215T000000Z
END:VAVAILABILITY