Currently if you want to sync Contact List in Outlook Client, you just need to click 'Track' button there but it only sync with Personal Contact.
Further setting is required if you want to share that synced Contact person to other users in CRM Online. Many customers find it inconvenient.

Please provide following features :

-Contact List in Outlook Client can automatically sync with Dynamics CRM Online
-Synced Contact Person can be shared with other users in Dynamics CRM Online as a shared contact list