I can confirm this bug. Applies to both Ubuntu 6.10 and Ubuntu 7.04 testing (as of Feb. 1st 2007).
root# capiinfo Number of Controllers : 1 Controller 1: Manufacturer: AVM GmbH CAPI Version: 2.0 Manufacturer Version: 3.11-07 (49.23) Serial Number: 1000001 ... root# lspci | grep -i avm 00:08.0 Network controller: AVM Audiovisuelles MKTG & Computer System GmbH A1 ISDN [Fritz] (rev 02) root# lsmod | egrep -i 'isdn|capi|avm|hisax' capi 19520 0 capifs 7176 2 capi mISDN_isac 17280 0 mISDN_core 75904 1 mISDN_isac kernelcapi 49792 2 capi,fcpci -- Crash while trying to save the ISDN Config https://launchpad.net/bugs/70871 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs