p.s. habe noch folgendes gefunden in /var/log/messages: Oct 23 19:07:49 troisgate ipppd: info: no CHAP secret entry for this user! Oct 23 19:07:49 troisgate ipppd[184]: Found 1 device: /dev/ippp0 Oct 23 19:07:49 troisgate ipppd[187]: ipppd i2.2.10 (isdn4linux version of pppd Oct 23 19:07:49 troisgate ipppd[187]: init_unit: 0 Oct 23 19:07:49 troisgate ipppd[187]: Connect[0]: /dev/ippp0, fd: 8 Oct 23 19:10:33 troisgate kernel: ippp0: dialing 1 0101901929... Oct 23 19:10:33 troisgate kernel: HiSax: WaitForBusy timeout Oct 23 19:10:37 troisgate last message repeated 9 times Oct 23 19:10:39 troisgate kernel: isdn: HiSax,ch0 cause: E001B Oct 23 19:10:40 troisgate kernel: HiSax: WaitForBusy timeout Oct 23 19:10:41 troisgate kernel: isdn_net: local hangup ippp0 Oct 23 19:10:41 troisgate kernel: ippp0: Chargesum is 0 bye kuddel