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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=PT link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Hi Bogdan!<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>It is supposed to send the Bye, but b2b is generating two BYEs (it is not retransmission) to end the same leg.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>You can see in the attachment the pcap capture that show this behavior.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Do you know why b2b is generating the extra messages?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Kind regards!<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Jorge Pinho<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> Bogdan-Andrei Iancu [mailto:bogdan@opensips.org] <br><b>Sent:</b> sexta-feira, 14 de Junho de 2013 11:31<br><b>To:</b> Jorge Henrique Pinho<br><b>Cc:</b> OpenSIPS users mailling list<br><b>Subject:</b> Re: [OpenSIPS-Users] (no subject)<o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><tt><span style='font-size:10.0pt'>Ok, going back to b2b then.</span></tt><span style='font-size:10.0pt;font-family:"Courier New"'><br><br><tt>Why it is not supposed to send BYE to B ? if you do terminate_call, all legs will be terminated.</tt><br><br><tt>Regards,</tt><br><br></span><o:p></o:p></p><pre>Bogdan-Andrei Iancu<o:p></o:p></pre><pre>OpenSIPS Founder and Developer<o:p></o:p></pre><pre><a href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a><o:p></o:p></pre><p class=MsoNormal><br>On 06/14/2013 11:46 AM, Jorge Henrique Pinho wrote: <o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Hi bogdan!</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Yes, I prefer to use b2b, if you can look into the problem I’ll be very grateful.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Kind regards!</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Jorge Pinho</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> </span><o:p></o:p></p><div><div style='border:none;border-top:solid windowtext 1.0pt;padding:3.0pt 0cm 0cm 0cm;border-color:-moz-use-text-color -moz-use-text-color'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> Bogdan-Andrei Iancu [<a href="mailto:bogdan@opensips.org">mailto:bogdan@opensips.org</a>] <br><b>Sent:</b> quinta-feira, 13 de Junho de 2013 17:43<br><b>To:</b> Jorge Henrique Pinho<br><b>Cc:</b> OpenSIPS users mailling list<br><b>Subject:</b> Re: [OpenSIPS-Users] (no subject)</span><o:p></o:p></p></div></div><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal><tt><span style='font-size:10.0pt'>Hello Jorge,</span></tt><span style='font-size:10.0pt;font-family:"Courier New"'><br><br><tt>For exactly those purposes you can use dialog module (topo hiding and call termination), but in a lighter and simpler fashion. </tt><br><br><tt>If you are keen to use the b2b, I can look into the problem.</tt><br><br><tt>Regard,</tt><br><br><br></span><o:p></o:p></p><pre>Bogdan-Andrei Iancu<o:p></o:p></pre><pre>OpenSIPS Founder and Developer<o:p></o:p></pre><pre><a href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a><o:p></o:p></pre><p class=MsoNormal><br>On 06/13/2013 04:56 PM, Jorge Henrique Pinho wrote: <o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Hi Bogdan!</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>It choose b2b support with topo hiding because this way the module will automatically match and forward requests and replies.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>In this example when I receive a bad formatted 200OK I need to immediately end the call. The call is ended in both clients but b2b is sending two BYE messages to B instead of one.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>What could be causing this behavior?</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'>Kind regards,</span><o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'>Jorge Pinho</span><o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p><div><div style='border:none;border-top:solid windowtext 1.0pt;padding:3.0pt 0cm 0cm 0cm;border-color:-moz-use-text-color'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> Bogdan-Andrei Iancu [<a href="mailto:bogdan@opensips.org">mailto:bogdan@opensips.org</a>] <br><b>Sent:</b> quarta-feira, 12 de Junho de 2013 18:26<br><b>To:</b> OpenSIPS users mailling list<br><b>Cc:</b> Jorge Henrique Pinho<br><b>Subject:</b> Re: [OpenSIPS-Users] (no subject)</span><o:p></o:p></p></div></div><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal><tt><span style='font-size:10.0pt'>Hi </span></tt>Jorge,<br><br>First of all, why do you want to use b2b support if you only need topo hiding and to terminate a call ? For these you can simply use the dialog module, which is a much lighter approach (with less probability for complications).<br><br>Have you consider to use the dialog module, with topology_hiding() script function and dlg_end_dlg MI function ?<br><br>Regards,<br><br><br><br><o:p></o:p></p><pre>Bogdan-Andrei Iancu<o:p></o:p></pre><pre>OpenSIPS Founder and Developer<o:p></o:p></pre><pre><a href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a><o:p></o:p></pre><p class=MsoNormal><br>On 06/12/2013 07:35 PM, Jorge Henrique Pinho wrote: <o:p></o:p></p><p class=MsoNormal><span lang=EN-US>Hi, I am using opensips with b2b module with topology hiding.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>I am trying to terminate a call when i receive the 200OK response to a Re-Invite. To accomplish this i am using the 'terminate_call' function defined in b2b_logic module.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>The dialog is establish and an user sends an in dialog Invite to renegotiate codecs, but the 200OK reply is mal formed. In consequence I need to terminate the call at this stage.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>To accomplish this I am using the terminate_call function present in b2b_logic module. When I receive the 200OK bad formatted message, I invoke the terminate_call function. The behavior of b2b is this :</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>A ----------------- Opensips (B2B) ------------------------ B</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>A Re-Invite </span><span lang=EN-US style='font-size:12.0pt;font-family:Wingdings'>à</span><span lang=EN-US> | Re-Invite </span><span lang=EN-US style='font-size:12.0pt;font-family:Wingdings'>à</span><span lang=EN-US> B</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>A | 200 OK* </span><span lang=EN-US style='font-size:12.0pt;font-family:Wingdings'>ß</span><span lang=EN-US style='font-size:12.0pt;font-family:"Arial","sans-serif"'> </span><span lang=EN-US> B *Bad formatted 200OK</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>A BYE </span><span lang=EN-US style='font-size:12.0pt;font-family:Wingdings'>ß</span><span lang=EN-US style='font-size:12.0pt;font-family:"Arial","sans-serif"'> </span><span lang=EN-US> | B</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>A | BYE</span><span lang=EN-US style='font-size:12.0pt;font-family:Wingdings'> à</span><span lang=EN-US> B</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>A | ACK </span><span lang=EN-US style='font-size:12.0pt;font-family:Wingdings'>à</span><span lang=EN-US> B</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>A | BYE </span><span lang=EN-US style='font-size:12.0pt;font-family:Wingdings'>à</span><span lang=EN-US> B</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>It seems that b2b is sending a first BYE to B that was not supposed to. Log is in the attachment.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>Can you help me fix this?</span><o:p></o:p></p><p class=MsoNormal>Kind regards<o:p></o:p></p><p class=MsoNormal>Jorge Pinho<o:p></o:p></p><pre> <o:p></o:p></pre><pre> <o:p></o:p></pre><pre>_______________________________________________<o:p></o:p></pre><pre>Users mailing list<o:p></o:p></pre><pre><a href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a><o:p></o:p></pre><pre><a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><o:p></o:p></pre></div></body></html>