[VoiceOps] ATAs with CAT-iq and HD codec support

[Michael Graves]

HDVoice is a topic quite close to my heart. I've been following some
recent developments that may be of interest.

First, the idea of an ATA that is G.722 (or otherwise HDVoice)
capable=0Ais a little odd. Anything that would connect via RJ-11 would,
by=0Adefinition, be built to PSTN standards and so NOT capable wideband
Aaudio. 

Passing wideband to the PSTN would actually cause problems.
Everything=0Awill filter the analog audio to meet the 3.4 KHz passband
specified for 8 KHz sampling.

However, Arris Corp claims that their cable CPE could be HDVoice
capable=0Awith just a firmware upgrade. That CPE only provides an
analog RJ type connection to the customer.

Gigaset has stepped up and said that their DECT systems could,
again=0Awith a firmware update, accept wideband analog audio via the RJ
input.

This means of taking cable customers to HDVoice could be cheaper than
the other commonly suggested approach, which is to add a DECT/CATiq
base radio to the cable CPE. That would mean rolling out large numbers
of new CPE, at considerable cost.=0A=0ACable Labs have included
DECT/CATiq in their ercent specs, providing a formal standard-based way
to add HDVoice capability in cable CPE.

Here's some related resources:

http://www.hdvoicenews.com
http://www.mgraves.org
http://www.mgraves.org/2011/09/hdvoice-on-the-cheap-analog-rj-11-style/
http://www.mgraves.org/2011/08/q-how-will-cat-iq-help-hdvoice/

On Tue, 20 Sep 2011 21:05:24 -0500, Frank Bulk wrote:

>Can anyone recommend any ATAs with CAT-iq and HD codec support?  We're
>thinking of a voice application for residential users that would offer
>HD-quality voice.  I'm told that traditional analog phones are insufficient,
>and it appears that the best method for providing HD voice is either native
>IP to the phone or DECT's CAT-iq.
>
>Frank
>
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Michael Graves
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