Hi to all the participants in this entertaining talk, here I am at your orders to answer any questions you have about it.
With respect to the Address Book, VitalPBX has a series of Addons among which is Phonebook, the way to install it is to go to Admin / Add-ons / Add-ons.
We can proudly say that VitalPBX is always up to date with the latest technologies and we constantly publish general interest blogs as a contribution to the community as well as offering our PBX completely free of charge.
https://vitalpbx.org/en/vitalpbx-blog/
Every day we are creating new Addons and very soon we will have a WebRTC Sofphone fully integrated with VitalPBBX.
We reiterate here and in our support forum we are always at your service to provide support or answer all your questions.
https://vitalpbx.org/en/community/