General Information

Interoperable Calendaring means never, never, ever having to enter an appointment on more than one machine

In the context of CalConnect’s mission, to advance interoperable calendaring & scheduling in practical and useful ways, one of our major activities is to promote open-standards based calendaring and scheduling to the general public as well as the information technology industry.

CalWS-SOAP SOAP Web Services Protocol for Calendaring V1.0 published

CalWS-SOAP SOAP Web Services Protocol for Calendaring V1.0 has been published as a CalConnect Proposal by the XML Technical Committee. This document defines a SOAP protocol implementation of the abstract Web Services API for Calendaring.

This protocol has been contributed to OASIS WS-CALENDAR as a component of the WS-CALENDAR Specification under development by OASIS.

Registration is now open for CalConnect XXVI, January 28-February 1, 2013

Registration is now open for CalConnect XXVI, January 28 – February 1, 2013, hosted by Oracle in Santa Clara, California. Monday and Tuesday all day and Wednesday morning will be the Interoperability Test Event; Wednesday afternoon, Thursday, and Friday will be the CalConnect Roundtable Technical Conference.

Interoperability Testing at CalConnect XXVI, January 28-30, 2013

The Interoperability Test Event will take place all day Monday and Tuesday, January 28-29, and Wednesday morning January 30th during CalConnect XXVI, hosted by Oracle in Santa Clara, California. For information about event logistics please see

At this point we are planning testing in the following areas (Updated 30 November 2012):

Interoperability Testing at CalConnect XXV in Zurich

This was a relatively large session with 22 on-site participants, 14 from Europe, representing the following organizations/implementations:

  • Apple (iCal Server, iCal Client, iCloud Server, iCloud Outlook Client, IOS 6)
  • Bedework
  • CalDAV-Sync and CardDAV-Sync
  • Evolution plugin
  • EGroupware
  • emClient
  • Google
  • Kerio Technologies
  • Mozilla Lightning
  • SabreDAV
  • Zimbra

In addition we had the following participate externally:

CalConnect Roundtable XXV in Zurich

Our CalConnect events generally consist of two parts: the first half of the week is interoperability testing, and the last half is the Roundtable Technical Conference. At CalConnect XXV in Zurich, our second full CalConnect event in Europe, nearly everyone who participated in the interoperability testing stayed for the Roundtable, and we had a few additional participants, making a total of 26 at the Roundtable, of which 17 were European, overall representing 11 members and 5 observers (prospective members).