I have a land-line phone through my ISP. I use it to call land-line phones free of charge like phones in Europe etc. what I want to do is that I want to use this service from any PC so I can call any land-line phone.
I'm a newbie in this but what I understood so far is that I need to install some kind of VOIP server on PC and connect that server to my home router. The VOIP server will provide me with user name/password that I can use on a VOIP client app on any PC. So that I can authenticate myself from anywhere in VOIP server and call for free. I hope I've explained clearly what I want to do.