BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//hacksw/handcal//NONSGML v1.0//EN
BEGIN:VALARM
TRIGGER:-PT30M
REPEAT:2
DURATION:PT15M
ACTION:DISPLAY
DESCRIPTION:Breakfast meeting with executive\n
 team at 8:30 AM EST.
END:VALARM
BEGIN:VALARM
TRIGGER;RELATED=END:-P2D
ACTION:EMAIL
ATTENDEE:mailto:john_doe@example.com
SUMMARY:*** REMINDER: SEND AGENDA FOR WEEKLY STAFF MEETING ***
DESCRIPTION:A draft agenda needs to be sent out to the attendees
  to the weekly managers meeting (MGR-LIST). Attached is a
  pointer the document template for the agenda file.
ATTACH;FMTTYPE=application/msword:http://example.com/
 templates/agenda.doc
END:VALARM
END:VCALENDAR