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<TITLE>RE: H323 situation</TITLE>
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<P DIR=LTR><SPAN LANG="pt"></SPAN><SPAN LANG="en-us"><FONT FACE="Consolas">Hi</FONT></SPAN><SPAN LANG="pt"></SPAN><SPAN LANG="en-us"><FONT FACE="Consolas">,</FONT></SPAN><SPAN LANG="pt"></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Consolas">Still I can</FONT></SPAN><SPAN LANG="pt"></SPAN><SPAN LANG="en-us"> <FONT FACE="Consolas">manage to have good incoming calls from h323</FONT></SPAN><SPAN LANG="pt"></SPAN><SPAN LANG="en-us"><FONT FACE="Consolas">…</FONT></SPAN><SPAN LANG="pt"></SPAN><SPAN LANG="en-us"><FONT FACE="Consolas"> C</FONT></SPAN><SPAN LANG="pt"></SPAN><SPAN LANG="en-us"><FONT FACE="Consolas">an someone give me a hand?</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Consolas">Regards,</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Consolas">LS</FONT></SPAN><SPAN LANG="pt"></SPAN><SPAN LANG="en-us"><FONT FACE="Consolas"> </FONT></SPAN></P>
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<P DIR=LTR><SPAN LANG="pt"></SPAN><SPAN LANG="en-us"><FONT FACE="Consolas">Date: Thu, 16 Jul 2009 15:46:43 +0100</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Consolas">From: Luis Silva <luis.silva@dreamware.pt></FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Consolas">Subject: [asterisk-users]</FONT></SPAN><SPAN LANG="pt"> <FONT FACE="Consolas">H323 situation</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">To: <asterisk-users@lists.digium.com></FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">Message-ID: <00ab01ca0624$3c9f69b0$b5de3d10$@silva@dreamware.pt></FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">Content-Type: text/plain; charset="us-ascii"</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">Hi all,</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">I have this installation:</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">Asterisk 1.6.1.1 with h323 support, pwlib_v1_10_3 and openh323_v1_18_0.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">I have a problem that is, when a call comes from H323 and goes to a Sip</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">phone the asterisk sends two rtp streams to the sip. I checked this with</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">tcpdump, save the payload (voice is in G711u), one is the ringing indication</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">and the other is the voice coming from the user in h323 side. And worst they</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">go to the same port. This causes that in the sip phone there are problems,</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">when the call is answered sometimes we get the riging indication, others a</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">mix of the two with very bad sound quality and others(few) a god audio call.</FONT></SPAN></P>
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<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">The outgoing calls from sip to H323 are ok.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">I also tested an incoming call from a dahdi channel and from here everything</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">is ok, only one rtp stream and a good call.</FONT></SPAN></P>
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<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">By the way I had other problem that I fixed, but don't know if it was in the</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">best way.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">The h323 box is a Cisco AS5300 (or 5350?) and when I was making outgoing</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">calls the AS disconnected all of them after 10 sec.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas"> I investigated I noticed that the AS as a limitation to the G711 payload to</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">20 ms, and asterisk was using 150 ms. I resolve this changing in frame.c the</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">codec value and recompile asterisk. There is simpler way to do this? Like</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">changing values in codec.conf?...</FONT></SPAN></P>
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<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">Regards</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="pt"><FONT FACE="Consolas">LS</FONT></SPAN></P>
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