Hello, I wanted to build a telephone. I know this one may seems needs some patience but I really want to build one. My telephone will not be as modern as many telephone were now. I just want my telephone to make a calls, to receive a calls. That's all. It seems simple for me but I know it will take a lot of time. I want my telephone to have its own telephone number. So guys, what do you think? What materials do I need to build this? If you think I can't do that, would somebody give me a textbook about communications? Thank you a lot.