Re: Clarification for Free/Busy

Dan Winship <[email protected]>
Newsgroups gmane.ietf.calendar
Message-ID <[email protected]> 
> >                 |  STATUS of VEVENT
> >                 |
> >VEVENT in period | TENTATIVE      | CONFIRMED        | CANCELLED | not there
> >and TRANSP       |                |                  |           |
> >=================|=====================================================
> >No / (none)      | FREE           | FREE             | FREE      | FREE
> >Yes/ OPAQUE      | BUSY-TENTATIVE | BUSY-UNAVAILABLE | FREE      | BUSY
> >Yes/ TRANSPARENT | FREE           | FREE             | FREE      | FREE

RFC 2445 says "The value BUSY indicates that the time interval is busy
because one or more events have been scheduled for that interval.
BUSY-UNAVAILABLE indicates that the time interval is busy and that the
interval can not be scheduled." So OPAQUE+CONFIRMED is BUSY, not
BUSY-UNAVAILABLE, since the interval has been scheduled. 

BUSY-UNAVAILABLE is like "I'm on vacation during this period" or "This
is a holiday" or "These hours are outside my work day". (Assuming a
work-related calendar.)

-- Dan
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