Foreword

This document incorporates by reference the CalConnect Intellectual Property Rights, Appropriate Usage, Trademarks and Disclaimer of Warranty for External (Public) Documents as located at

http://www.calconnect.org/documents/disclaimerpublic.pdf.

The Recurrence Technical Committee of CalConnect (The Calendaring and Scheduling Consortium) has collected specific information on how C&S implementations have, or have not, implemented the Recurrence Rules of RFCs 2445 and 2446, iCalendar and iTIP. This document is part of the committee’s work to compile actual usage information and interoperability issues.

The Recurrence Committee recently collected information in the form of a Recurrence Questionnaire, which allowed vendors and other producers and consumers of iCalendar recurrences to list the features of iCalendar that they implemented. The questionnaire also contained space for comments about each line item in the RFCs and also overall issues with recurrences. The Recurrence Technical Committee has since analyzed the results of the questionnaire into this document.

The Committee and the Consortium would like to thank all those who took part in this effort by filling out the Recurrence Questionnaire.

This document is generally available to all who responded to the questionnaire in evaluating their implementation against others, and to all organizations and implementors working with Calendaring and Scheduling implementations. The Recurrence Technical Committee of CalConnect would appreciate feedback on the value and relevance of this material from those who make use of it. Feedback and comments may be sent to the Executive Director of the Consortium via mailto:Dave.Thewlis@calconnect.org.