When an "Organizer" removes a scheduling object resource, the server MUST inspect each "ATTENDEE" property to determine whether to send a scheduling message. The table below indicates the appropriate iTIP method used by the server, taking into account any "SCHEDULE-AGENT" property parameter (see Section 7.1) specified on each "ATTENDEE" property.
              +------------------+-------------+
              | SCHEDULE-AGENT   | iTIP METHOD |
              +------------------+-------------+
              | SERVER (default) | CANCEL      |
              |                  |             |
              | CLIENT           | --          |
              |                  |             |
              | NONE             | --          |
              +------------------+-------------+