[Freeswitch-users] g729 and AMR codec requirements

[Yossi Neiman]

On 03/18/2013 04:29 PM, Abdul Basit wrote:
> Thank you for responses.
>
> What other HD codes are supported? actually blackberry has AMR support 
> only. Thats why AMR should be in the shelf.

One that I would consider as an option is Opus.  It is basically a 
successor codec to Speex and CELT, and supports "HD" (or "wideband" and 
"ultra-wideband") rates/quality.  The downside to Opus is that to the 
best of my knowledge, there is no option for offloading any transcoding 
onto dedicated trancoder cards or similar hardware.  But on the upshot, 
if you don't need to transcode, it is of little impact to the server 
that you are hosting your calls on.

> Also is there any option to buy bulk license for g729 rather than 
> managing 2500 licenses.

I can't speak authoritatively on this issue, but I think that the bulk 
option is one stipulated by the patent holder and not by any entity that 
resells licensing for specific implementations of the g729 codec 
transcoding implementations.  If I recall correctly, you had to have 
something like an order of 1,000,000 licenses directly from the entity 
that holds the patent.

For a more accurate and correct response, please see the Wiki page at 
http://wiki.freeswitch.org/wiki/Mod_com_g729 .

> Any idea on hardware, CPU and RAM required to deal with such conf. load?

It's probably going to be a heavier load on the CPU than on the RAM.  I 
unfortunately cannot provide any actual numbers, as I have never tested 
the load.

Hope this helps.

-Yossi


>
> --
> regards,
>
> abdul basit | p: +92 32 1416 4196 | o: +92 30 0841 1445
>
>
> On Mon, Mar 18, 2013 at 11:21 PM, Ken Rice <krice at freeswitch.org 
> <mailto:krice at freeswitch.org>> wrote:
>
>     I can confirm that, Sangoma's cards do not include AMR licensing.
>     This is
>     one of their * notes right on the marketing materials.
>
>     Seems the AMR group will only licensed either complete products or
>     the end
>     user.
>
>
>
>
>     On 3/18/13 10:27 AM, "Steve Underwood" <steveu at coppice.org
>     <mailto:steveu at coppice.org>> wrote:
>
>     > Hi,
>     >
>     > Moises can confirm this, but I think even the Sangoma hardware
>     > transcoder cards require separate patent licencing for AMR.
>     >
>     > Steve
>     >
>     > On 03/19/2013 12:30 AM, Ken Rice wrote:
>     >> Re: [Freeswitch-users] g729 and AMR codec requirements One per
>     >> participant. So if you have 500 dynamic rooms w/ 5 participants
>     each
>     >> you would need 2500 licenses.
>     >>
>     >> Keeping in mind that FreeSWITCH does not have a license for AMR you
>     >> will need to get that direct from the AMR patent licensing people.
>     >>
>     >>
>     >> On 3/18/13 7:57 AM, "Abdul Basit" <basit.engg at gmail.com
>     <mailto:basit.engg at gmail.com>> wrote:
>     >>
>     >>     Hi,
>     >>
>     >>     I am planing to setup FS based conferencing solutions with 500
>     >>     dynamic conference rooms with 3 ~ 5 participants in each room.
>     >>
>     >>     Need suggestions on hardware dimensioning and codec
>     requirements.
>     >>     I am thinking on using AMR and G729 codecs.
>     >>
>     >>     How many codec licenses are required?
>     >>
>     >>     --
>     >>     regards,
>     >>
>     >>     abdul basit | p: +92 32 1416 4196
>     <tel:%2B92%2032%201416%204196> | o: +92 30 0841 1445
>     <tel:%2B92%2030%200841%201445>
>     >>
>     >>
>     >>
>

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