CLient for call from PC to PC

What Client i must take when i have a debian server and want call over voice over ip? XLITE is good but i become no connection to two computers! What I can do? You can respond in Germany, too.

sorry have no body a solution for this problem?

This forum is specifically for questions on or around Asterisk solutions. You are better off querying the XLite/Counterpath forum here:

Good luck.