Date: Thu, 3 Sep 1998 16:21:18 +0200 From: Leo Weppelman <leo@wau.mis.ah.nl> To: hm@kts.org Cc: freebsd-isdn@FreeBSD.ORG Subject: Re: called-back, rejects and auto hangup Message-ID: <19980903162118.27170@wau.mis.ah.nl> In-Reply-To: <m0zEVPR-00000GC@bert.kts.org> from "Hellmuth Michaelis" on 1998/09/03 11:10 %2B0200 References: <19980902220352.22500@wau.mis.ah.nl> <m0zEVPR-00000GC@bert.kts.org>
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On Thu 03 Sep 1998, Hellmuth Michaelis wrote: > > I think Gary said it already: the remote calls back almost immediately; long > before the local call to the remote is disconnected - this can be seen > from the traces you sent me in private mail. Can you tell me why you think this is the case? > This situation is not being handled by isdnd due to internal design > limitations - changing this will be a major undertaking. > > The only help for this situation is, to delay the callback from the remote > for a time it takes to disconnect the local to the remote. > > If the remote were a i4b machine, i'd say "increase the callbackwait entry > parameter for this call to the time it takes to disconnect the local out- > going call". I'm quite shure (this was a Linux machine IIRC) that i4l has > something similar to tune the delay time; this it the knob to tune for this > situation. Yes, this was a Linux machine and, to reply partially to Martin, I cannot 'snoop' the isdn line from a separate machine :-( I increased the callback-delay parameter from 2 to 20 seconds. This did not change anything on my side. I still don't get the DISCONNECT within a minute. The (shortened) linux side trace looks like: 15:55:12 1998 Q.931 frame network->user broadcast 15:55:12 1998 callref 1 caller size 37 message type SETUP 15:55:12 1998 Q.931 frame user->network tei 80 15:55:12 1998 callref 1 called size 4 message type ALERTING 15:55:12 1998 Q.931 frame user->network tei 80 15:55:12 1998 callref 1 called size 8 message type DISCONNECT 15:55:12 1998 Cause 15:55:12 1998 coding 00 location 0000 15:55:12 1998 cause value 15 : Call rejected 15:55:12 1998 Q.931 frame network->user tei 80 15:55:12 1998 callref 1 caller size 4 message type RELEASE 15:55:12 1998 Q.931 frame user->network tei 80 15:55:12 1998 callref 1 called size 4 message type RELEASE COMPLETE 15:55:28 1998 Q.931 frame user->network tei 80 15:55:28 1998 callref 84 caller size 39 message type SETUP etc.... As you can see, the remote side waits +/- 16 seconds before starting the callback. In this time, my end gets no disconnect messages.... It looks like a bug somewhere indeed. The more because the alert shows up rather promptly at my end. The disconnect disappears somewhere in space.... Leo. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isdn" in the body of the message
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