The Folder Sharing Web Service Protocol is responsible for managing calendars that are shared among users in separate organizations. Clients use the Folder Sharing Web Service Protocol to share calendar appointments, get appointments, and update appointments.
Sections 1.8, 2, and 3 of this specification are normative and can contain the terms MAY, SHOULD, MUST, MUST NOT, and SHOULD NOT as defined in [RFC2119]. Sections 1.5 and 1.9 are also normative but does not contain those terms. All other sections and examples in this specification are informative.