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

[Ramtin Amin]

I haven't seen many softphone doing AMR, but heard that nokia's phone do AMR... would be good to have a pcap from a nokia phone using amr to figure it out.
Sergio and I have seen two different RFC with two different packetization so they changed their mind somewhere ! :)
Anyways, going from IF1 to IF2 is not a big deal... Just need to make sure which one is the one that is used !
 



> Date: Thu, 19 Jul 2007 14:30:23 +0200> From: sergio.garcia at fontventa.com> To: asterisk-video at lists.digium.com> Subject: Re: [Asterisk-video] AMR in H324M<->SIP> > > > 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> >>>> >>>> >>> ------------------------------------------------------------------------> >>>> >>> _______________________________________________> >>> --Bandwidth and Colocation Provided by http://www.api-digital.com--> >>>> >>> asterisk-video mailing list> >>> To UNSUBSCRIBE or update options visit:> >>> http://lists.digium.com/mailman/listinfo/asterisk-video> >>> >> _______________________________________________> >> --Bandwidth and Colocation Provided by http://www.api-digital.com--> >>> >> asterisk-video mailing list> >> To UNSUBSCRIBE or update options visit:> >> http://lists.digium.com/mailman/listinfo/asterisk-video> >>> > > > > > _______________________________________________> > --Bandwidth and Colocation Provided by http://www.api-digital.com--> > > > asterisk-video mailing list> > To UNSUBSCRIBE or update options visit:> > http://lists.digium.com/mailman/listinfo/asterisk-video> > _______________________________________________> --Bandwidth and Colocation Provided by http://www.api-digital.com--> > asterisk-video mailing list> To UNSUBSCRIBE or update options visit:> http://lists.digium.com/mailman/listinfo/asterisk-video> > > > _______________________________________________> --Bandwidth and Colocation Provided by http://www.api-digital.com--> > asterisk-video mailing list> To UNSUBSCRIBE or update options visit:> http://lists.digium.com/mailman/listinfo/asterisk-video
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