opal many video call software will be based on this protocol

opal-3.6.8\ChangeLog-opal-v3_6_8.txt
..........\config.guess
..........\config.sub
..........\configure
..........\configure.ac
..........\configure.exe
..........\docs\diagram.gif
..........\....\Overview.htm
..........\include\asn\gcc.h
..........\.......\...\h225.h
..........\.......\...\h235.h
..........\.......\...\h235_srtp.h
..........\.......\...\h245.h
..........\.......\...\h248.h
..........\.......\...\h4501.h
..........\.......\...\h45010.h
..........\.......\...\h45011.h
..........\.......\...\h4502.h
..........\.......\...\h4503.h
..........\.......\...\h4504.h
..........\.......\...\h4505.h
..........\.......\...\h4506.h
..........\.......\...\h4507.h
..........\.......\...\h4508.h
..........\.......\...\h4509.h
..........\.......\...\h501.h
..........\.......\...\mcs.h
..........\.......\...\t38.h
..........\.......\...\x880.h
..........\.......\codec\echocancel.h
..........\.......\.....\g711a1_plc.h
..........\.......\.....\g711codec.h
..........\.......\.....\opalplugin.h
..........\.......\.....\opalpluginmgr.h
..........\.......\.....\opalwavfile.h
..........\.......\.....\ratectl.h
..........\.......\.....\rfc2833.h
..........\.......\.....\rfc4175.h
..........\.......\.....\silencedetect.h
..........\.......\.....\vidcodec.h
..........\.......\h224\h224.h
..........\.......\....\h224handler.h
..........\.......\....\h281.h
..........\.......\....\h281handler.h
..........\.......\....\h323h224.h
..........\.......\....\q922.h
..........\.......\.323\channels.h
..........\.......\....\gkclient.h
..........\.......\....\gkserver.h
..........\.......\....\h225ras.h
..........\.......\....\h235auth.h
..........\.......\....\h323.h
..........\.......\....\h323annexg.h
..........\.......\....\h323caps.h
..........\.......\....\h323con.h
..........\.......\....\h323ep.h
..........\.......\....\h323neg.h
..........\.......\....\h323pdu.h
..........\.......\....\h323rtp.h
..........\.......\....\h323trans.h
..........\.......\....\h450pdu.h
..........\.......\....\h501pdu.h
..........\.......\....\peclient.h
..........\.......\....\q931.h
..........\.......\....\svcctrl.h
..........\.......\....\transaddr.h
..........\.......\.460\h460.h
..........\.......\....\h4601.h
..........\.......\....\h46018.h
..........\.......\....\h46019.h
..........\.......\....\h4609.h
..........\.......\....\h460p.h
..........\.......\....\h460pres.h
..........\.......\....\h460tm.h
..........\.......\iax2\callprocessor.h
..........\.......\....\causecode.h
..........\.......\....\frame.h
..........\.......\....\iax2.h
..........\.......\....\iax2con.h
..........\.......\....\iax2ep.h
..........\.......\....\iax2jitter.h
..........\.......\....\iax2medstrm.h
..........\.......\....\iedata.h
..........\.......\....\ies.h
..........\.......\....\overview.h
..........\.......\....\processor.h
..........\.......\....\receiver.h
..........\.......\....\regprocessor.h
..........\.......\....\remote.h
..........\.......\....\safestrings.h
..........\.......\....\sound.h
..........\.......\....\specialprocessor.h
..........\.......\....\transmit.h
..........\.......\....\version.h
..........\.......\.m\im.h
..........\.......\..\msrp.h
..........\.......\..\rfc4103.h
..........\.......\..\sipim.h
..........\.......\..\t140.h
..........\.......\lids\lid.h

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