Original von archangel
Hello i would like to ask you if you know which external modems
are compatible with the recently kde versions
AFAIK it's more a question of whether it's supported by the underlying operating system,
i.e. if your Linux distro (assuming you're using Linux) supports it everything should be ok.
You can check with your distro vendor.
SuSE offers a hardware compatibility database, for example:
http://cdb.suse.de/?LANG=en_UK