Auto Provisioning

We’re experimenting with Asterisk (Askozia, to be honest), and we want to make sure that as soon as we plug in the LAN cable of Grandstream phones on a network, it’ll configure everything automatically, like the Caller ID, Password and SIP Server, to name a few.
I have the feeling that it has something to do with “Manual Attributes”, but I don’t know any values for it.

Thanks in Advance.

This isn’t normally done using Asterisk. One normally configures the phone to access DHCP and tftp servers, which can be anywhere, subject to broadcast area constraints.