Good afternoon, I hope and I can support, you can make the configuration of a conventional switch VoIP server with Asterisk now if this is possible what would be the steps that need hardware.
Greetings.
Asterisk is conventional in this respect.
some manual settings, I would greatly appreciate it
The same as connecting to an ITSP, except a static IP address and no secrets. Obviously use peer, but you should use that for an ITSP.