[192773] in North American Network Operators' Group

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Re: Voice channels (FTTH, DOCSIS, VoLTE)

daemon@ATHENA.MIT.EDU (Marcin Cieslak)
Mon Nov 21 02:39:12 2016

X-Original-To: Nanog@nanog.org
Date: Mon, 21 Nov 2016 07:39:07 +0000
From: Marcin Cieslak <saper@saper.info>
To: Jean-Francois Mezei <jfmezei_nanog@vaxination.ca>
In-Reply-To: <58329B31.3070806@vaxination.ca>
Cc: "Nanog@nanog.org" <Nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org

On Mon, 21 Nov 2016, Jean-Francois Mezei wrote:

> Would DOCSIS be the same as FTTH, with the cableco voice service riding
> isnide the same DOCSIS bandwidth but with pre-allocated bandwidth, or do
> they allocate separate NTSC channels with a totally separate data pipe ?

DOCSIS has a possibility to provision unidirectional data flows with
certain quality of service characteristics. A pair of these is usually
dedicated to a casual Internet connection, another one can be used for
layer 2 telephony service, etc. Allocating a whole TV channel frequency
would be a big waste. Not even sure it would be possible with standard
DOCSIS.

Marcin Cieślak

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