<br><div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">On Sat, 2007-01-27 at 11:33 -0500, Lee Jenkins wrote:
<br><br>> ><br>> > How does H.264 compare with GSM and G.729 in CPU demand (MIPS:Kbps) and<br>> > audio quality at low bitrates? GSM is $free, but G.729 is higher quality<br><br></blockquote></div>I just caught this but oh well. GSM as used in asterisk has patent claims by philips. It expires this June or July I forget, Philips seems to have stopped trying to enforce their patent claims on the very library asterisk uses, but right now technically using it without a license could get you sued (only part of the gsm codec is claimed to be patented).
<br><br>The newer GSM 6.10 which afaik asterisk does not support although there might be 3rd party people doing it has additional patents on the AMR parts of it. Those dont expire so quickly.<br><br>-- <br>Trixter <a href="http://www.0xdecafbad.com">
http://www.0xdecafbad.com</a> Bret McDanel<br>Belfast +44 28 9099 6461 US +1 516 687 5200<br><a href="http://www.trxtel.com">http://www.trxtel.com</a> the VoIP provider that pays you!