AT&T Global Network Client + Debian + Internet Connection

Hello!

I use the AT&T Global Network Client on Windows for connecting to my
comapnys network. For that i have to configure the client to use an
existing internet connection.

I was very happy as i found this guide: ftp://ftp.attglobal.net/pub/client/linux/linuxguide.pdf
for installing it on my debian.

It was quite hard to install the software, to find the old libs, but
thats another story...
I noticed to late that the linux dialer cant connect over an existing
internet connection. Thats not good.

Does anyone have any idea how to solve this? Other Software? Patches?

Thanks a lot!

Greetings from Austria!