What is CardDav?
CardDAV is an open protocol designed to facilitate the transfer of Contact information between systems.
CardDAV is designed to act as a two-way protocol that facilitates updating, creation, deletion and downloads of Contact information between a client (e.g. a mobile phone) and a server (e.g. an application such as Google Contacts or Rex).
There are two deliberate limitations that we have decided to include in our implementation of the protocol - this is due largely to the inconsistent nature of third party client implementations:
Our implementation is Read Only for a number of reasons. This means that the sync is one way - you can download Contacts to your CardDAV compatible application or device but you cannot update, delete or create new Contacts (see below).
You cannot sync more than 5000 Contacts. The Contacts that will be synced to your phone can be configured from your User Profile screen - you can apply any filter you choose - for example, 'Hot' Contacts that you own.
Contact Sync from Rex
Contact syncing can be set up from your profile by going to:
- Your Initials at the top right corner of Rex
- Select Profile
- Select Contact Sync from the left hand menu