I configured the phones and FPBX a few days ago. Want to know if the side buttons near the display are for commonly pressed extensions? I have one programmed as line number but in reality, only one sip wholesale provider is linked into the pbx.

Want to get a recommend of a good reliable wholesale provider for these phones?

also, should my service go down and I am on another call, like to get some recommendations of a freepbx/asterisk consultant to repair the servers issues.

Lastly, like to buy a low cost embeded server that will mount to a wall or has 2u rack capability. The server will have external plug in flash capability on the side of the server.

Thanks