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CalConnect XXX
May 19-23 2014
Hosted by AOL
Dulles, Virginia



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Welcome to CalConnect

Welcome to CalConnectSM, The Calendaring and Scheduling Consortium.

You don't need to be a member of CalConnect to implement a standard. You need to be a member of CalConnect to influence a standard.
We are a non-profit partnership between vendors of calendaring and scheduling systems and tools, and users of those tools. Our purpose is to improve all aspects of calendaring and scheduling, in particular interoperability. We do this by improving existing standards, developing new standards, offering interoperability testing for calendaring and scheduling systems and tools, collaborating with other organizations with similar goals, and conducting periodic conferences where engineers and customers meet and interact in a collegial atmosphere. Although CalConnect is not a standards development organization, virtually every important calendaring or calendaring-related standard over the last five years has been authored, edited and/or coedited by members of a CalConnect Technical Committee.

We invite you to learn more about CalConnect, and we hope you will become a participating member. If you have any questions, please use the contact form, or e-mail us directly at contact@calconnect.org.


Coming Events
  • CalConnect XXX – Interoperability Test Event and CalConnect Conference, May 19-23, 2014, hosted by AOL, Dulles, Virginia.
  • CalConnect XXXI – Interoperability Test Event and CalConnect Conference, September 29 - October 3, 2014, Softly Software, Bedford, United Kingdom.
  • CalConnect XXXII – Interoperability Test Event and CalConnect Conference, January 26-30, 2015, hosted by Kerio Technologies, San Jose, California.


What we are working on now – major projects underway in CalConnect Technical Committees – become a member and help make these things happen
  • Abstract API for Calendaring and Scheduling - We need a full "CRUD" (Create/Read/Update/Delete) Application Programming Interface for Calendaring and Scheduling
  • Autodiscovery - One-stop setup for devices and new service providers for calendaring, e-mail, etc. based on internet standard protocols
  • CalDAV Alarms - Extend alarm support to allow for cross-device dismissal, proximity triggers based on location, default alarms in CalDAV
  • CalDAV Attachments - Extends the calendaring server to manage attachments
  • CalDAV/CardDAV Sharing - Sharing calendars and contacts between users across systems
  • CalWS-REST and CalWS-SOAP - We need to (finally) provide platform and system-independent calendaring and scheduling operations APIs for web services - it's long past time
  • Consensus Scheduling (VPOLL) - TimeTrade, Doodle, WhenisGood do it, it should be interoperable - scheduling driven by the attendees who get to vote on the best times and locations for group events
  • Event Publishing Extensions - Calendaring standards need to support the rich environment of Web 2.0 (and beyond) for the publication of public events - rich text, participants and image support
  • iSCHEDULE - We need server to server scheduling between dissimilar systems - we have had client to server scheduling for a long time
  • jCal - More web 2.0 - We need a standard representation of iCalendar in JSON. It's a natural follow-on to the recently completed xCal (iCalendar in XML)
  • Non-Gregorian Calendars - Establish a way for recurrences to work with non-Gregorian calendar systems, in particular lunar/solar calendars
  • OASIS WS-Calendar - Working with OASIS to develop their new WS-Calendar standard (scheduling for the Smart Grid), based on xCal, CalWS-REST and CalWS-SOAP
  • PUSH for CalCAV (and CardDAV) - Extend CalDAV and CardDAV with standardized support for PUSH notifications
  • Tasks (VTODOs) - Extend the functionality of VTODOs to support needs such as project management, smart power grids and business task scheduling.
  • Timezone service and registry - Full timezone support via dynamic server calls rather than embedding timezone information in events - no more having event times wrong when timezones change and your software isn't updated
  • VAVAILABILITY - New iCalendar component to describe availability, to 'condition' freebusy lookup and scheduling (e.g. you may be 'free' at 3 a.m. but you aren't available for a meeting)
  • vCard Resources - Define the vCard representation of calendaring resources to ease the discovery and scheduling of resources between any calendar client and server.

  • More information about current work


Recent Highlights
  • 19-Mar-2014 TC API established: CalConnect has established TC API to develop a calendaring architecture and abstract API.
  • 07 Feb-2014 CalConnect Terminology Changes: CalConnect has retired the name "Roundtable" as used for its thrice-yearly conference and members' meeting and will use the term "CalConnect Conference" or "Conference" going forward. The term "Ad Hoc" to describe a short-term exploratory committee has been retired, and will be replaced by "Provisional Committee".
  • 14-Jan-2014 Milton.io Joins CalConnect: CalConnect welcomes Milton.io as a member of the consortium.
  • 16-Dec-2013 TC PUSH established: CalConnect has established TC PUSH to develop a standardized method for PUSH notifications for CalDAV and CardDAV.
  • 07-Oct-2013 Softly Software Joins CalConnect: CalConnect welcomes Softly Software as a member of the consortium.
  • 26-Sep-2013 Cyrus Daboo third recipient of CalConnect Distinguished Service Award: CalConnect is proud to announce that Cyrus Daboo of Apple is the third recipient of the CalConnect Distinguished Service Award.
  • 16-Aug-2013 Stylite Joins CalConnect: CalConnect welcomes Stylite AG as a member of the consortium.
  • 15-Aug-2013 fruux Joins CalConnect: CalConnect welcomes fruux GmbH as a member of the consortium.
  • 13-Aug-2013 Ribose Joins CalConnect: CalConnect welcomes Ribose Inc as a member of the consortium.
  • 28-Jun-2013 Atlas Joins CalConnect: CalConnect welcomes Atlas as a member of the consortium.
  • 21-May-2013 Software AG Joins CalConnect: CalConnect welcomes SoftwareAG as a member of the consortium.
  • 15-May-2013 SchedJoules Joins CalConnect: CalConnect welcomes SchedJoules as a member of the consortium.
  • 07-May-2013 BusyMac Joins CalConnect: CalConnect welcomes BusyMac as a member of the consortium.
  • 15-Apr-2013 CalConnect Announces new Membership Categories and Interoperability Test Event Participation Fees: CalConnect has established new membership categories for vendors in the less than $5M annual revenue range, and for emergent vendors with less than $1M annual revenue. The Emergent Vendor category has a very low initial membership fee with a 3-year staged fee leading to a full commercial vendor membership, and pays a lower Interoperability Test Event registration fee. Only one member representative is permitted for an Emergent Vendor member. Interoperability Test Event fees have also been adjusted to the nearest $100 to rationalize them, addtional participant fees raised slightly, and non-member interoperability test event fees changed. See Membership Fees and Interoperability Test Event Fees for more information.

  • See Previous Highlights


CalConnectSM is a Service Mark of The Calendaring and Scheduling Consortium. Copyright © 2014 The Calendaring and Scheduling Consortium. Copyright and Licensing Information