So you would like code for c++ code for Voice over IP. I am a beginner and can`t help you but I do know that not that much ppl will check UNIX/Linux programming forum. (Cuz not that much ppl use Linux for programming.But they should)
You can edit post and move it to General C++ Programming
I beg to differ I think a LOT of people use *nix to program.
I left Windows Vista and been using Linux ever since. I've tried several distros and have settle on crunchbang. I've dabbled with Red Hat/Fedora, Ubuntu and its variants, Knoppix, Mandrake/Mandriva, and a few others before settling on #!.
I only use Vista for gaming. Though I need to get back to using and start Windows programming again.
There is a cross-platform lib for VOIP => http://www.speex.org/