[Asterisk-video] AMR in H324M<->SIP

[Sergio Garcia]

It's something that's not very clear
Luckly mpeg4Ip only support hinting amr with if2 and octect-aligned mode, I don't kow what do others sofphones support.

Best regards
Sergio


---------- Original Message ----------------------------------
From: Klaus Darilion <klaus.mailinglists at pernau.at>
Reply-To: Development discussion of video media support in Asterisk<asterisk-video at lists.digium.com>
Date:  Thu, 19 Jul 2007 14:23:26 +0200

Ok, H324M uses the octed-aligned mode (=interface format 2).

But what is used with RTP? if1 or if2?
Where else is if1 used?

thanks
klaus



Sergio Garcia Murillo wrote:
> AMR Interface Format 2
> http://www.3gpp.org/ftp/tsg_sa/TSG_SA/TSGS_06/Docs/PDF/SP-99562.pdf
> 
> AMR Octect Aligned packetization
> http://www.ietf.org/rfc/rfc3267.txt
> 
> It was quite a nigthmare untill we discovered that .. :)
> 
> ----- Original Message ----- 
> From: "Klaus Darilion" <klaus.mailinglists at pernau.at>
> To: "Development discussion of video media support in Asterisk"
> <asterisk-video at lists.digium.com>
> Sent: Tuesday, July 17, 2007 12:33 AM
> Subject: Re: [Asterisk-video] AMR in H324M<->SIP
> 
> 
>> Sergio Garcia Murillo wrote:
>>> Hi everyone,
>>>
>>> Paul Bagyenda sent me a modification of his amr_codec to support octect
>>> aligned mode in if2 (the format needed for h324m).
>>
>> Sorry for my ignorance, but what means if2?
>>
>> klaus
>>
>>> I haven't not been able to test it (I don't have an isdn avaiable), but
> it
>>> would be great if any of you make it works.
>>>
>>> In codecs.conf, add:
>>>
>>> [amr]
>>> octet-aligned=1
>>>
>>> Best regards
>>> Sergio
>>>
>>>
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