Re: [codec] #1: Application: 2.1. Point to point calls supporting transcoding?
"Christian Hoene" <hoene@uni-tuebingen.de> Tue, 23 March 2010 21:53 UTC
Return-Path: <hoene@uni-tuebingen.de>
X-Original-To: codec@core3.amsl.com
Delivered-To: codec@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6A91F3A68C0 for <codec@core3.amsl.com>; Tue, 23 Mar 2010 14:53:29 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.519
X-Spam-Level:
X-Spam-Status: No, score=-2.519 tagged_above=-999 required=5 tests=[BAYES_50=0.001, DNS_FROM_OPENWHOIS=1.13, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4]
Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id p8zL1uH-Bwse for <codec@core3.amsl.com>; Tue, 23 Mar 2010 14:53:28 -0700 (PDT)
Received: from mx06.uni-tuebingen.de (mx06.uni-tuebingen.de [134.2.3.3]) by core3.amsl.com (Postfix) with ESMTP id DB51F3A6CA8 for <codec@ietf.org>; Tue, 23 Mar 2010 14:53:26 -0700 (PDT)
Received: from hoeneT60 (ip66-104-73-132.z73-104-66.customer.algx.net [66.104.73.132]) (authenticated bits=0) by mx06.uni-tuebingen.de (8.13.6/8.13.6) with ESMTP id o2NLrVEP000558 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Tue, 23 Mar 2010 22:53:39 +0100
From: Christian Hoene <hoene@uni-tuebingen.de>
To: 'James Rafferty' <James.Rafferty@dialogic.com>
References: <062.4b6a3862c443b2d8917e027f2267f4d2@tools.ietf.org> <617DF0128820F9458AC39149A627EE6C01A2947C57@MBX.dialogic.com>
In-Reply-To: <617DF0128820F9458AC39149A627EE6C01A2947C57@MBX.dialogic.com>
Date: Tue, 23 Mar 2010 14:53:29 -0700
Message-ID: <000701cacad3$4b99c7c0$e2cd5740$@de>
MIME-Version: 1.0
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Mailer: Microsoft Office Outlook 12.0
Thread-Index: AcrKrYfj3apVMECfQumBSXebrKc66AAIj/cwAABWsmA=
Content-Language: de
X-AntiVirus: NOT checked by Avira MailGate (version: 3.0.0-4; host: mx06)
Cc: codec@ietf.org
Subject: Re: [codec] #1: Application: 2.1. Point to point calls supporting transcoding?
X-BeenThere: codec@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: Codec WG <codec.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/codec>, <mailto:codec-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/codec>
List-Post: <mailto:codec@ietf.org>
List-Help: <mailto:codec-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/codec>, <mailto:codec-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 23 Mar 2010 21:53:29 -0000
Hi James, >In my view, this is dodging the real issue. I believe there WILL be transcoding for point to point >calls between wireline and wireless networks, where the connection is IP on both sides and multiple >wide band codecs are used. Could you elaborate a bit more on this scenario? Do you mean that the wireline has -for example- Skype phone with the Internet codec and the wireless end will have an LTE codec? Of course, both sides will use IP. >For that matter, there will also be cases where a PSTN - IP gateway is needed, but that's not usually >defined as transcoding. As a manufacturer of IP-to-IP gateways your insight knowledge is highly appreciated. With best regards, Christian Hoene > >James > >James Rafferty >Product Line Director, Integrated Media Gateways >Dialogic, Inc. >15 Crawford Street >Needham, MA 02494 >USA > >Tel: 781 433 9462 >Mobile: 781 929 3895 >Fax: 781 433 9268 >Email: james.rafferty@dialogic.com >Web: www.dialogic.com >This e-mail is intended only for the named recipient(s) and may contain information that is >privileged, confidential and/or exempt from disclosure under applicable law. No waiver of privilege, >confidence or otherwise is intended by virtue of communication via the internet. Any unauthorized use, >dissemination or copying is strictly prohibited. If you have received this e-mail in error, or are not >named as a recipient, please immediately notify the sender and destroy all copies of this e-mail. > >-----Original Message----- >From: codec-bounces@ietf.org [mailto:codec-bounces@ietf.org] On Behalf Of codec issue tracker >Sent: Tuesday, March 23, 2010 10:20 AM >To: hoene@uni-tuebingen.de >Cc: codec@ietf.org >Subject: [codec] #1: Application: 2.1. Point to point calls supporting transcoding? > >#1: Application: 2.1. Point to point calls supporting transcoding? >------------------------------------+--------------------------------------- > Reporter: hoene@… | Owner: > Type: enhancement | Status: new > Priority: major | Milestone: >Component: requirements | Version: > Severity: Active WG Document | Keywords: >------------------------------------+--------------------------------------- > Question: Shall the point-to-point call support transcoding? > > If not, please add something like > "This scenario does not include the use case of using a VoIP-PSTN gateway > to connected to legacy telephone systems. In those cases, the gateway > would make an audio conversion from broadband Internet voice to the frugal > 1930’s 3.1 kHz audio bandwidth. Interconnections to the PSTN will most > likely stick with its legacy codecs to avoid transcoding." > >-- >Ticket URL: <http://tools.ietf.org/wg/codec/trac/ticket/1> >codec <http://tools.ietf.org/codec/> > >_______________________________________________ >codec mailing list >codec@ietf.org >https://www.ietf.org/mailman/listinfo/codec
- [codec] #1: Application: 2.1. Point to point call… codec issue tracker
- Re: [codec] #1: Application: 2.1. Point to point … James Rafferty
- Re: [codec] #1: Application: 2.1. Point to point … Christian Hoene
- Re: [codec] #1: Application: 2.1. Point to point … James Rafferty
- Re: [codec] #1: Application: 2.1. Point to point … Christian Hoene
- Re: [codec] #1: Application: 2.1. Point to point … James Rafferty
- Re: [codec] #1: Application: 2.1. Point to point … Christian Hoene
- Re: [codec] #1: Application: 2.1. Point to point … James Rafferty
- Re: [codec] #1: Application: 2.1. Point to point … stephen botzko
- Re: [codec] #1: Application: 2.1. Point to point … James Rafferty
- Re: [codec] #1: Application: 2.1. Point to point … Christian Hoene
- Re: [codec] #1: Application: 2.1. Point to point … Marc Petit-Huguenin
- Re: [codec] #1: Application: 2.1. Point to point … Michael Knappe
- Re: [codec] #1: Application: 2.1. Point to point … Marc Petit-Huguenin
- Re: [codec] #1: Application: 2.1. Point to point … stephen botzko
- Re: [codec] #1: Application: 2.1. Point to point … Marc Petit-Huguenin
- Re: [codec] #1: Application: 2.1. Point to point … Michael Knappe
- Re: [codec] #1: Application: 2.1. Point to point … Dr. Christian Hoene
- Re: [codec] #1: Application: 2.1. Point to point … codec issue tracker
- Re: [codec] #1: Application: 2.1. Point to point … stephen botzko
- Re: [codec] #1: Application: 2.1. Point to point … Christian Hoene
- Re: [codec] #1: Application: 2.1. Point to point … stephen botzko
- Re: [codec] #1: Application: 2.1. Point to point … Koen Vos
- Re: [codec] #1: Point to point calls supporting t… codec issue tracker