The CalDAV and CardDAV standards provide an easy way to keep all our smart things up-to-date with what we are doing, as well as how to get hold of our friends and other contacts. In this tutorial, we’ll show you how to sync calendars and contacts from

Source: How To Sync Calendars and Contacts Using CardDAV and CalDAV Standards with Baïkal on Ubuntu 14.04 | DigitalOcean