Need tips on compatible ISDN drivers ???

[Tels]

Hi I have built a Redhat 7.1 Firewall, originally to work on DSL but now I need it to dial ISDN.

I have a Fritz! AVM card, but no drivers can I find anywhere...

Does anyone know where I can find drivers, or perhaps what cards are compatible???

ps when I try to run ISDNConf in KDE, it tells me the module is not installed.... can't find it on any of me distro CD's..

Thanks in advance for all your help

Tels
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