I installed the program on a 600MHz laptop - Thinkpad X21, running Fedora 2 and using 11MHz wireless for network connection.
The sound was terrible, almost impossible to hear voice.
But when running the program on a stationary PC with a 2GHz CPU and ordinary ethernet card, it works like a charm (also a linux Fedora 2).
I look for some kind of advanced settings for trimming the program to run on a slow PC.
Until now I have only used the Skype program on the home LAN, looking forward to use it over the Internet.
Brgds Jorgen / DK