After downloading and testing leif a bit I came across one thing that
I can not find a hint for.
I have saved the phonebook into a file and after that try to use that
file to "restore" the phonebook.
To be honest, I never saw any application using THAT much
memory in such a short time ;-)
It was faster to grab all the 512MB memory I have and starting
swapping than I was to start a second terminal and stop the
application.
Somehow it never stopped with this until the machine was
completely drained of memory.
All the other stuff is working correctly.
Here is my setup.
T610 -> USB -> ezV24 -> KDE 3.2.1 -> Suse 9.0
As the rest of the commands work (editing phon entries, SMS etc.)
I guess that something is wrong with the upload alone.