DAHDI documentation is required

Hello All!

Is there some tutorials, examples or books how to write own driver to be fit DAHDI interface?

Especially, I’m interested in some example that can say:

  1. Which interfaces should be implemented in any case
  2. If I need some specific functionality I should implement this and this.

Any links are welcome.

Or it is a question to Developer’s team?

Does one of Digium’s telephony cards fit your requirements?

No. We have own DSP and it is an idea to implement a driver according to DAHDI interfaces to use chan_dahdi.

May be this way is not appropriate and we should switch to other possibility like AGI or something else?