I don't really see how this would ever have worked with libcapi20 from isdnutils, see https://github.com/larsimmisch/capisuite/issues/10
CapiSuite is an ISDN telecommunication suite providing easy to use telecommunication functions which can be controlled from Python scripts. Currently, mainly voice functions and fax sending/receiving are supported.
It uses a CAPI-compatible driver for accessing the ISDN-hardware, so you'll need an Eicon or AVM card or any mISDN supported adapter with the according driver.
CapiSuite is distributed with scripts providing a multi-user answering machine with automatic fax recognition, remote inquiry and fax send/receive functions.
For further information, please have a look at the manual section available online or in the download packages. Please test it and post your feedback to the bug tracker and/or the mailing lists. Thank you!
For the documentation see the created HTML documents situated in docs/manual/index.html or in the installed version see $PREFIX/share/doc/capisuite/manual/index.html. There's also a german translation of the manual available at http://www.capisuite.org/.
Building capisuite from git
git clone https://github.com/larsimmisch/capisuite.git cd capisuite ./configure ...options... make sudo make install
Please see Makefile.git for other targets which may be useful for core-developers.
This git repository was created from the svn dumps that Gernot Hillier kindly provided on http://www.capisuite.org/ and contains his and his collaborators work.
All credit should go to the original team. I (larsimmisch) have only made minor bugfixes, in particular small changes that make capisuite compatible with mISDN (the socket branches from http://git.misdn.eu/).