You're right, I don't understand the question either, and this isn't Homework do for me forum either. But it is what you get when the domain is changed to voip-info and you have a board called Asterisk with a description of anything to do with asterisk. (Soapbox off)
Now I did have a question to do with asterisk but is HamRadio related - I know we have a couple in here (w1wv?).
There is a way to use radio in asterisk (app_rpt.so - to which I cannot find for the life of me) a project called AllstarLink uses an ancient version of asterisk (think *2.something) but I want to 'bridge this to my incredible 2020 (IAX trunk) calls from our repeater could DTMF *4357 (*Help) or similar and get a dial tone to call someone when Cell signals (which are horrible in Maine in places).
I know I can make a trunk, but then how to accomplish the dial plan where dialing that code in one system (which is on a RasPi3 -> Main Box, Get a Dial tone (maybe ask for a password first) then dial out through our system (possibly including internal extensions (it's for a club after all). Thinking DISA or some such.
Not important now but we'd like to try this as an experiment.