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Re: [dispatch] Fwd: Re: WG Review: Call Control UUI for SIP (cuss)

Laura Liess <laura.liess.dt@googlemail.com> Thu, 01 July 2010 14:28 UTC

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Date: Thu, 01 Jul 2010 16:28:26 +0200
Message-ID: <AANLkTileqlftNRviabrKWpApqsKSnspiNLYvC7y3cpJn@mail.gmail.com>
Subject: Re: [dispatch] Fwd: Re: WG Review: Call Control UUI for SIP (cuss)
From: Laura Liess <laura.liess.dt@googlemail.com>
To: "WORLEY, Dale R (Dale)" <dworley@avaya.com>
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Cc: Paul Kyzivat <pkyzivat@cisco.com>, "dispatch@ietf.org" <dispatch@ietf.org>, James Rafferty <James.Rafferty@dialogic.com>, Roland Jesske <R.Jesske@telekom.de>, "ietf@ietf.org" <ietf@ietf.org>
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> Can you tell us about the misuse?  It might be relevant to the expected usage of the cuss feature.

I was relevant for that time, when communication was expensive and
telephony was billed per minute...

In Germany's PSTN, carriers are not allowed to bill for signalling,
only for the voice channel usage. Some smart guys built devices which
sent many SETUPs messages with UUI and canceled the call setup
immediately. So they transmitted their information without paying
anything and causing high load on the signalling network.

Thanks
Laura

2010/7/1 WORLEY, Dale R (Dale) <dworley@avaya.com>:
> ________________________________________
> From: ietf-bounces@ietf.org [ietf-bounces@ietf.org] On Behalf Of Laura Liess [laura.liess.dt@googlemail.com]
> Sent: Thursday, July 01, 2010 8:53 AM
>
> At least within the DT network, UUI is used between application
> servers or application servers and "special" end devices as call
> centers. As far as I know, UUI is currently not part of the DT normal
> telephony package. Many years ago, it was, but people misused it.
> _______________________________________________
>
> Can you tell us about the misuse?  It might be relevant to the expected usage of the cuss feature.
>
> Dale
>

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