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

Frank Bulk frnkblk at iname.com
Fri Sep 23 00:33:48 EDT 2011

I've been given the impression by some folks that most analog phones don't
do much better than 4 kHz.  I wish there was more solid data out there.


-----Original Message-----
From: voiceops-bounces at voiceops.org [mailto:voiceops-bounces at voiceops.org]
On Behalf Of Matthew S. Crocker
Sent: Thursday, September 22, 2011 6:38 AM
To: VoiceOps at voiceops.org
Subject: Re: [VoiceOps] ATAs with CAT-iq and HD codec support

----- Original Message -----
> From: "Michael Graves" <mgraves at mstvp.com>
> To: "VoiceOps at voiceops.org" <voiceops at voiceops.org>, frnkblk at iname.com
> Sent: Wednesday, September 21, 2011 8:38:29 PM
> Subject: Re: [VoiceOps] ATAs with CAT-iq and HD codec support
> 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.

An analog handset will pass the analog signal with all of the fidelity of
the microphone.  The ATA could sample at a HD rate (22kHz ??) and present
the additional data to the HD codec.   Granted analog phones don't have the
best microphone available but it will easily be able to out perform the
current 4kHz limitations of the PSTN.
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