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jgarland at jasongarla...
Guest

Posted: Tue Jan 27, 2009 4:49 pm Post subject: [Freeswitch-users] mod_g729

Something like this might do it... Wink

Quote:

<?xml version="1.0" standalone="yes"?>



<hdaudio>
<voice>
<codecs>
<preferences voice.codecPref.Lin16="5" voice.codecPref.G722="1" voice.codecPref.G711Mu="2" voice.codecPref.G711A="3" voice.codecPref.G729AB="4" voice.codecPref.IP_300.G711Mu="1" voice.codecPref.IP_300.G711A="2" voice.codecPref.IP_300.G729AB="3" voice.codecPref.IP_4000.G711Mu="1" voice.codecPref.IP_4000.G711A="2" voice.codecPref.IP_4000.G729AB="" voice.codecPref.IP_650.G711Mu="2" voice.codecPref.IP_650.G711A="3" voice.codecPref.IP_650.G729AB="4" voice.codecPref.IP_650.Lin16="5" voice.codecPref.IP_650.G722="1"/>
<profiles voice.audioProfile.G711Mu.payloadSize="20" voice.audioProfile.G711Mu.jitterBufferMin="40" voice.audioProfile.G711Mu.jitterBufferShrink="500" voice.audioProfile.G711Mu.jitterBufferMax="160" voice.audioProfile.G711A.payloadSize="20" voice.audioProfile.G711A.jitterBufferMin="40" voice.audioProfile.G711A.jitterBufferShrink="500" voice.audioProfile.G711A.jitterBufferMax="160" voice.audioProfile.G729AB.payloadSize="20" voice.audioProfile.G729AB.jitterBufferMin="40" voice.audioProfile.G729AB.jitterBufferShrink="500" voice.audioProfile.G729AB.jitterBufferMax="160" voice.audioProfile.G722.payloadSize="20" voice.audioProfile.G722.jitterBufferMin="40" voice.audioProfile.G722.jitterBufferShrink="500" voice.audioProfile.G722.jitterBufferMax="160" voice.audioProfile.Lin16.payloadSize="10" voice.audioProfile.Lin16.jitterBufferMin="20" voice.audioProfile.Lin16.jitterBufferShrink="500" voice.audioProfile.Lin16.jitterBufferMax="100" voice.audioProfile.Lin16.frequency="16000" voice.audioProfile.Lin16.payloadType="117"/>
</codecs>
<handset voice.handset.wideband="1"/>
</voice>
</hdaudio>

On Tue, Jan 27, 2009 at 2:17 PM, peder@networkoblivion.com (peder@networkoblivion.com) <peder@networkoblivion.com (peder@networkoblivion.com)> wrote:

Quote:

> Codec Options*

Quote:

G.711 Codec, G.726, G.729AB, G.723.1A, G.722 wideband codec

Speex is not listed, so Polycom can't do Speex.

I should note that even the non-HD Polycom phones have this same chip
and are capable of doing G.722 some some config tweaking. Wink

steveu at coppice.org
Guest

Posted: Tue Jan 27, 2009 8:55 pm Post subject: [Freeswitch-users] mod_g729

Jason Garland wrote:

Quote:

If you want Speex support you need to target the chipset manufacturers:

Here is the Texas Insturments chipset that Polycom uses in the IP650
CPU is TNETV1050/C55x, rev 2 running at 162MHz with memory at 125MHz.
And here are the codecs that Chip supports from TI's datasheet on this chip:
http://focus.ti.com/pdfs/bcg/tnetv1050_prod_bulletin.pdf

Codec Options*
G.711 Codec, G.726, G.729AB, G.723.1A, G.722 wideband codec
Speex is not listed, so Polycom can't do Speex.

I should note that even the non-HD Polycom phones have this same chip
and are capable of doing G.722 some some config tweaking. Wink

I'm willing to bet that Cisco doesn't make their own DSP chips either.
Find out who makes their chips and put pressure on that chip
manufacturer to develop chips with Speex support.

You are confusing two things. TI makes the TNETVxxxx range of chips.
Their Telogy division makes software for VoIP platforms. The two may be
used together or apart, and things may be added to the basic set of
Telogy software. For example, in the Linksys SPA series you'll find the
TI silicon used with Telogy software, but they also have Asterisk thrown
in there to provide voicemail features.

I very much doubt that Polycom uses TI's software. They've had their own
VoIP software for a very long time, and I expect they still use it.

Regards,
Steve

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chris.chen2004 at gmai...
Guest

Posted: Tue Jan 27, 2009 10:16 pm Post subject: [Freeswitch-users] mod_g729

Great thanks to Jason for sharing Cherebrum's great discovery, this works like a charm on my Ploycom IP 320 with G722 codec.

Chris
On Tue, Jan 27, 2009 at 4:48 PM, Jason Garland <jgarland@jasongarland.com (jgarland@jasongarland.com)> wrote:

Quote:

Something like this might do it... Wink

Quote:

On Tue, Jan 27, 2009 at 2:17 PM, peder@networkoblivion.com (peder@networkoblivion.com) <peder@networkoblivion.com (peder@networkoblivion.com)> wrote:

Quote:

> Codec Options*

Quote:

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steveu at coppice.org
Guest

Posted: Wed Jan 28, 2009 7:14 am Post subject: [Freeswitch-users] mod_g729

Hi Raul,

Raul Fragoso wrote:

Quote:

Hi Steve,

My point is more towards the high import taxes here. A foreign company
won't pay as much taxes to export to Brazil as brazilians would pay
import taxes for such goods.
I will give you a simple example: a Snom 320 phone would cost roughly US
$180.00 if bought in the US. Here it would cost at least double the
price, but usually more. We pay almost 100% for importing taxes + GST,
excluding the greedy profit that dealers and resellers usually apply,
but Snom (or their distributors) would pay only a small fraction of that
to export phones to Brazil. The irony is that we don't see where all
this money is spent, as the country still suffers of a huge social and
economical dissimilarity among their people.
On the other hand, our current government seems to be making some
progress to make exporting from Brazil easier, specially for small
companies (international trade is known to be very bureaucratic here).
Anyway, this is turning into a politics discussion thread and I know it
can annoy some people. Just to stay in the subject thread, I also
endorse the support for open codecs rather than paying millions for
G.729 licenses.

Well, any discussion of trade immediately has a political element.
However, this discussion is quite interesting from an engineering point
of view. Engineering is never separate from politics, as so much
engineering is working around artificial barriers erected by politics.
To many engineers, a lot of decisions seem wacky, because they can't see
the political angle. The different pressures guiding decisions like buy
local/buy foreign, use ISDN/use MFC/R2, and so on can be quite illuminating.

Steve

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peder at networkoblivi...
Guest

Posted: Thu Jan 29, 2009 10:19 pm Post subject: [Freeswitch-users] mod_g729

Do you just specify g722 for the codec prefs on FS? I added the items
below and have FS set to use g722. When I call, I see that the phone
offers g722 and g711u and FS chooses g722. On the phone I see g722 as
inbound and outbound, but I don't hear anything. I've tried speaker and
handset and get nothing on either one. Also, the phone doesn't show
packets increasing even though I can see FS is playing files. It is an
IP600. I switch the Polycom to offer 711u first and then g722 and FS
chooses 711u and works fine.

Jason Garland wrote:

Quote:

Something like this might do it... Wink

00" voice.audioProfile.Lin16.payloadType="117"/>

Quote:

</codecs>
<handset voice.handset.wideband="1"/>
</voice>
</hdaudio>

On Tue, Jan 27, 2009 at 2:17 PM, peder@networkoblivion.com
<mailto:peder@networkoblivion.com> <peder@networkoblivion.com
<mailto:peder@networkoblivion.com>> wrote:

Quote:

Codec Options*
G.711 Codec, G.726, G.729AB, G.723.1A, G.722 wideband codec

Speex is not listed, so Polycom can't do Speex.

I should note that even the non-HD Polycom phones have this same chip
and are capable of doing G.722 some some config tweaking. Wink

Are you saying that you have actually gotten the non-HD versions to do
g.722? Or are you saying that one might be able to do this? If the
former, can you share what you did?

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