Not many options for a Public Folder (PF) being used as a resource.
You could set it up as a "Moderated" PF, but this would require a
person to monitor and approve/deny each appointment.
You do not mention what version of Outlook client nor the version
of Exchange Server. This information can help tremendously towards
solutions that are offered.
The following articles explain in detail how to configure the resource
and how to book it correctly if you try using Direct Booking.
"tree leafs" <treeleafs@hotmail.com> wrote in message
news:%233NTkQM3IHA.4800@TK2MSFTNGP02.phx.gbl...
> Hi,
> we use calendar items in public folder for room and utility bookings. But
> sometime double bookings occur. Just wonder how to stop these to occur.
> From server side or outlook side?
> Thanks
>