Configuring LAN Modem not possible in openSuse 11.3 ?

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http://forums.opensuse.org – I have a devolo MicroLink 56k Fun LAN modem, which I could configure in openSuse 11.2 as an DSL device. With 11.2 it worked fine. But it isn't possible in 11.3 to configure it, because I cannot set the dial up internet provider phone number for this DSL device. I also tried it to configure it as a modem, but then it used the /dev/modem device, which is the wrong device for this LAN modem. Is a workaround possible, e.g. manipulating some files? Many thanks! (Distributions)