Date: Thu, 18 Mar 1999 09:20:41 +0000 (GMT) From: Stewart Morgan <stewart@BITS.bris.ac.uk> To: Hellmuth Michaelis <hm@hcs.de> Cc: freebsd-isdn@FreeBSD.ORG Subject: Re: User-user D-Channel packets Message-ID: <Pine.BSF.4.05.9903180901390.25762-100000@BITS.bris.ac.uk> In-Reply-To: <m10NXwe-0000beC@hcswork.hcs.de>
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On Thu, 18 Mar 1999, Hellmuth Michaelis wrote: > >From the keyboard of Stewart Morgan: > > > I've also tinkered with facility packets to get "service 3" enabled but to > > no avail. So, either I'm not doing something right or the service isn't > > implemented -- is there anyway to conclusively tell?? > > Either look at the causes - they should tell you something - or you have to > ask your ISDN provider. It comes back with 98 (0x62) which gives me three options: 1) Message not compatible with call state Acording to the ETSI specs, this should be fine in most call states. 2) Message type non-existent Not the case. 3) Not implemented Acording to BT web pages, they implemented this last year. I guess it could simply be a case of it being disabled but the cause seems a little ambiguous, more of a general case answer?? *sigh* :) > I have no idea what "service 3" is but UUS has to be subscribed here in > Germany, so it is disabled by default. As I understand it, there are 3 types of UUS "service": 1) Implicit or explicit service 1: allows 2x35 or 2x131 octets to be sent (in both directions) during the call setup / tear-down phases. 2) Explicit service 2: allows the same thing but only between the alerting and connect phases. 3) Explicit service 3: allows unlimited multiples of 131 octets to be sent in user_information frames once a call has been established. I started with service 3, but realised I'd have to send some facility frames so I tried implicit service 1 in the setup phase, but I don't get any difference in output surely there would be causes?? I shall investigated the "disabled by default" though I was under the impression that it was standard with an ISDN 2e compient socket?? Does anyone out there have any experience of this?? Any help appreciated... Stewart ------- - Systems-Representative & Joint Systems Administrator BITS - Bristol Information Technology Society University of Bristol Student's Union, Bristol, England E-Mail : stewart@BITS.bris.ac.uk WWW : http://www.BITS.bris.ac.uk/stewart/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isdn" in the body of the message
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