Is there any way to create your own sip trunk?

Question

Asterisk

Roughly speaking, I have a server
and a third-party asterisk in which I set up a trunk to my server.
It is necessary to imitate from the server, for example, signaling an incoming call, or a real call, but from a makeshift sound source.
possible in any language C++, C, etc.

Answer 1

And than for example callfile does not arrange?
An example of how to use google in 5 seconds.
Well, or here https://voxlink.ru/kb/asterisk-configuration/call-...