Problms with ISP connection over ISDN Syncppp

I have the following problem, i connect to my ISP and on the ISDN side everything is ok, i get my IP Adress and a default route is set. But i cant even Ping the Remote Computer (the second IP i get). The Ping says somthing like service not available or so (i cant look now, because i wrie th

Problens with Hylafax and dynamic ISDN Dialup

Hi, i changed from SuSE to DEbian and now i have 2 Problems and hope , sombody could help me : 1. Hylafax is configuerd and works fine for some hours. then, i don´t know why, it starts to say, that the Modem is wedged and stops the faxgetty. Does somebody know whats wrong. I can send you the config