Create phonebook based on extensions

Hello
I have Asterisk installed (Asterisk NOW with FreePBX).
Now I am creating extensions for all my employees.

The list of Extension + Username is kind of a simple phonebook.
Is there anyway to share this list with the users so they always have an updated list of all extensions + names?
Ideally I would like to have this integrated into my softphones. Is this possible?

Thanks!

You really need to ask the FreePBX people this, as you would be relying on the limitations in FreePBX.