Re: [codec] #5: Mention in requirements, FAX?
Michael Knappe <mknappe@juniper.net> Fri, 02 April 2010 14:26 UTC
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From: Michael Knappe <mknappe@juniper.net>
To: "hoene@uni-tuebingen.de" <hoene@uni-tuebingen.de>, "codec@ietf.org" <codec@ietf.org>
Date: Fri, 02 Apr 2010 07:24:40 -0700
Thread-Topic: [codec] #5: Mention in requirements, FAX?
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Subject: Re: [codec] #5: Mention in requirements, FAX?
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Please, no fax! :-) >From someone who has dealt with fax carriage for years.... Mike ----- Original Message ----- From: codec-bounces@ietf.org <codec-bounces@ietf.org> To: codec@ietf.org <codec@ietf.org> Sent: Fri Apr 02 10:21:18 2010 Subject: Re: [codec] #5: Mention in requirements, FAX? Hi guys, just for the notes. Testing Fax (http://en.wikipedia.org/wiki/Fax#History) is definitely out of scope? Christian --------------------------------------------------------------- Dr.-Ing. Christian Hoene Interactive Communication Systems (ICS), University of Tübingen Sand 13, 72076 Tübingen, Germany, Phone +49 7071 2970532 http://www.net.uni-tuebingen.de/ >-----Original Message----- >From: codec-bounces@ietf.org [mailto:codec-bounces@ietf.org] On Behalf Of Brian West >Sent: Friday, April 02, 2010 4:10 PM >To: stephen botzko >Cc: codec@ietf.org >Subject: Re: [codec] #5: Mention DTMF in requirements > >But Codecs themselves do not detect DTMF. Thats the job of the DTMF detector. NOT the codec. In all >my work with codecs I have not once seen one that knows anything about DTMF. And if the codec is too >lossy inband is out of the question. > >/b > >On Apr 2, 2010, at 9:01 AM, stephen botzko wrote: > >> I heard no decision as to DTMF tone encoding. >> >> As far as I am concerned, the question of whether the codec MUST encode DTMF tones accurately enough >to be detected at the decoder output (or SHOULD or non-requirement) is still open. >> >> That question clearly is in-scope, and has nothing to do with signaling. >> >> Stephen Botzko > >_______________________________________________ >codec mailing list >codec@ietf.org >https://www.ietf.org/mailman/listinfo/codec _______________________________________________ codec mailing list codec@ietf.org https://www.ietf.org/mailman/listinfo/codec
- Re: [codec] #5: Mention in requirements, FAX? Michael Knappe