Access Phonebook from SIP and Softphones

I have imported my google contacts into the Asterisk Phonebook.
I can see them via the Admin Web Interface.

I can not figure out how to get them accessed via my Grandstream 715 / 710.
Also I am running Counterpath Bria 2.4
I can register with the FreePBX server, but not register the contacts system to the server.

How can I do this before I use this system all over my home?