Problem 2 is that doing a local hangup (eg. by writing "H" to the
dialout device) to a call which is already disconnected results in isdnd
moving the cfg entry to an illegal state, from which there is no
recovery. This is tricky because there is no way to synchronize local
hangup with the remote end (ie. the callee can always hang up at an
inconvenient time)! Hence, patch-2 alters fsm.c's EV_DRQ state table
such that the local hangup request is processed or ignored in most
states, even for disconnected calls.
Submitted by: Juha-Matti Liukkonen <jml@cubical.fi>
ISDN4BSD is the work of our brand-new comitter: Hellmuth Michaelis,
who has done a tremendous amount of work to bring us this far.
There are still some outstanding issues and files to bring into
the tree, and for now it will be needed to pick up all the extra
docs from the isdn4bsd release.
It is probably also a very good idea to subscribe to the isdn@freebsd.org
mailing list before you try this out.
These files correspond to release "beta Version 0.70.00 / December
1998" from Hellmuth.
