A probléma a következõ: az isdnutils nevû programcsomagot használom ami tartalmaz egy démont, hogy lehessen on demand tárcsázni… az ISDN kártya mûködik, a lényeg:
Amikor csatlakozni szeretnék (Pl.: isdnctrl dial ippp0 ) akkor a következõ üzenetet kapom:
isdn_net_force_dial: No channels for ippp0
ippp0: Resource temporarity unavailable

A kern.log:
Mar 25 15:43:42 vidra kernel: isdn_net_force_dial: No channel for ippp0
Mar 25 15:43:51 vidra kernel: ippp_ccp: freeing reset data structure de406000

Az isdnlog:
isdnlog Version 4.57 starting
Holiday Version -0.1 default [2001/10/10] loaded [4 entries from /usr/share/isdn/holiday-default.dat]
Dest V1.01: File ‘/usr/share/isdn/dest.cdb’ opened fine – Dest 1.0 int (+h) AT DE NL CH
Zone V1.25: Provider 0 File ‘/usr/share/isdn/zone-default-x.cdb’ opened fine – V1.25 K2 C1 N1 T1 O1 L3
Rates Version 0.01-default [2001/10/10] loaded [1 Providers, 1 Zones, 1 Areas, 0 Services, 0 Comments, 0 eXceptions, 0 Redirects, 2 Rates from /usr/share/isdn/rate-default.dat]
(ISDN subsystem with ISDN_MAX_CHANNELS ] 16 detected, ioctl(IIOCNETGPN) is available)
isdn.conf:2 active channels, 0 MSN/SI entries
(Data versions: iprofd=0x06 net_cfg=0x06 /dev/isdninfo=0x01)
Everything is fine, isdnlog-4.57 is running in full featured mode.

A messages:
Mar 25 15:42:11 vidra kernel: isdn: Verbose-Level is 7
Mar 25 15:42:12 vidra ipppd[310]: Found 1 device:
Mar 25 15:42:12 vidra ipppd[322]: ipppd i2.2.12 (isdn4linux version of pppd by MH) started
Mar 25 15:42:12 vidra ipppd[322]: init_unit: 0
Mar 25 15:42:12 vidra ipppd[322]: Connect[0]: /dev/ippp0, fd: 8
Mar 25 15:43:42 vidra kernel: isdn_net_force_dial: No channel for ippp0
Mar 25 15:48:18 vidra ipppd[322]: Terminating on signal 15.
Mar 25 15:48:18 vidra ipppd[322]: closing fd 8 from unit 0
Mar 25 15:48:18 vidra ipppd[322]: link 0 closed , linkunit: 0
Mar 25 15:48:18 vidra ipppd[322]: Exit.