How can i use kppp & tell me all dark point of it

hi every body
Could i possibly ask you to explain some skills and instruction and tell some solving soulotion of kpp and dial up connection?

it's seems that in z syber and all conexant chip on the dial up modems linux has problem or i am in the wrong.

That depends on what distro (flavor of Linux) and version that you are using. Can you post what distro and version that you are using?

There is generic support for Conexant chipsets from Linuxant but the distro may support the card if we may know what you are using.

You may also want to read this article.