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</o:shapelayout></xml><![endif]--></head><body lang=ES link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'>Hi all,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'>I am Jose Saldana, a researcher from University of Zaragoza, in Spain. I am new in this list!<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'>In our research group we are working on a small-packet grouping solution, which may be of interest for “call trunking” between two Asterisks.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'>I know that IAX2 supports trunking, but some Asterisk’s users prefer SIP+RTP for different reasons. Therefore, including an “RTP trunking” solution in Asterisk could be an interesting feature. The name of our proposal is Simplemux.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'>We have proposed it to the IETF, and we also have a running implementation.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'>The savings can be huge (up to 50% for certain voice codecs), as multiplexing is combined with ROHC header compression.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'>If the Developers team find it interesting, I think it could be easily integrated into Asterisk.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'>Some links:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'>A presentation: <a href="http://es.slideshare.net/josemariasaldana/simplemux-traffic-optimization">http://es.slideshare.net/josemariasaldana/simplemux-traffic-optimization</a> (Asterisk scenario is in slide 12; results with VoIP are in slides 23-24)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'>The implementation in GitHub: <a href="https://github.com/TCM-TF/simplemux">https://github.com/TCM-TF/simplemux</a><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'>The IETF draft: <a href="https://datatracker.ietf.org/doc/draft-saldana-tsvwg-simplemux/">https://datatracker.ietf.org/doc/draft-saldana-tsvwg-simplemux/</a><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'>A couple of scientific papers explaining the idea:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'><a href="http://diec.unizar.es/~jsaldana/personal/yoda_commag_2013.pdf">http://diec.unizar.es/~jsaldana/personal/yoda_commag_2013.pdf</a><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'><a href="http://diec.unizar.es/~jsaldana/personal/chicago_CIT2015_in_proc.pdf">http://diec.unizar.es/~jsaldana/personal/chicago_CIT2015_in_proc.pdf</a><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'>Best regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A;mso-fareast-language:ES'>Jose Saldana, PhD<br>Dpt. Electrical Engineering and Communications<br>EINA, University of Zaragoza.<br>Ada Byron Building, D. 2.05<br>50018 Zaragoza, Spain<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A;mso-fareast-language:ES'>Tel: +34 976 76 2698<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A;mso-fareast-language:ES'>Ext: (84)2698<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A;mso-fareast-language:ES'>E-mail: </span><a href="mailto:jsaldana@unizar.es"><span lang=EN-US style='font-family:"Arial",sans-serif;color:blue;mso-fareast-language:ES'>jsaldana@unizar.es</span></a><span lang=EN-US style='font-family:"Arial",sans-serif;color:#44546A;mso-fareast-language:ES'><o:p></o:p></span></p><p class=MsoNormal><a href="http://diec.unizar.es/~jsaldana"><span style='font-family:"Arial",sans-serif;color:blue;mso-fareast-language:ES'>http://diec.unizar.es/~jsaldana</span></a><span style='font-family:"Arial",sans-serif;color:#44546A;mso-fareast-language:ES'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>