Voice channels (FTTH, DOCSIS, VoLTE)

Marcin Cieslak saper at saper.info
Mon Nov 21 07:39:07 UTC 2016

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

Marcin Cieślak

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