Date: Tue, 1 Sep 1998 14:36:26 +0200 From: Leo Weppelman <leo@wau.mis.ah.nl> To: freebsd-isdn@FreeBSD.ORG Subject: called-back, rejects and auto hangup Message-ID: <19980901143626.40046@wau.mis.ah.nl>
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I have had trouble with an ISDN connection to my work for a while now.
Sometimes it worked, sometimes it did not. At work, there is an x86/pc
running Linux. It has an ISDN connection so we are able to dialin from
home. It is configured for callback. When things work, what happens is:
My machine (NetBSD/Atari i4b-0.63) dials out
-> Machine at work recognises the incoming call, rejects it and
starts dialing to me
My machine, hangs up (rejected) and recognizes incoming call
When things are not working as they should, the actions in the log
indicate that the reject never arrives at my machine at home. This means
that at my end, the incoming call is not recognized because the connection
entry is still active (still dialing....).
As fix (stop-gap) I modified i4b to just hangup the line after 2 seconds
when dialing out on a calledback connection (see diff below).
My question is, is this a reasonable/sensible thing to do? If it is, I
think my patch should be expanded a bit with a tunable hangup time (0 ==
no hangup).
Thoughts?
Leo.
PS: When will the next i4b alpha be released? I'm losing track of the
changes a bit ;-)
diff -rc i4b/isdnd/fsm.c i4b.org/isdnd/fsm.c
*** i4b/isdnd/fsm.c Wed Aug 26 10:45:55 1998
--- i4b.org/isdnd/fsm.c Thu Jun 18 16:46:38 1998
***************
*** 195,205 ****
select_first_dialno(cep);
sendm_connect_req(cep);
-
- if (cep->dialouttype == DIALOUT_CALLEDBACK) {
- sleep(2);
- sendm_disconnect_req(cep, (CAUSET_I4B << 8) | CAUSE_I4B_NORMAL);
- }
}
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