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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Thanks Ben! 2.4.6 indeed fixed the issue with the missing SDP in the ACK.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Unfortunately, a new problem has cropped up:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="mso-fareast-language:EN-US">opensipsctl ping
<a href="sip:1234@1.2.3.4">sip:1234@1.2.3.4</a> ALWAYS returns “200 OK”. I could point it to a dead IP and it still returns 200 OK.
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="mso-fareast-language:EN-US">In 2.4.2 and in 1.8, this returned “200” or whatever cause code the UA returned, and “408” for a time out. Now it’s always “200 OK”<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="mso-fareast-language:EN-US">Help again…..<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Users <users-bounces@lists.opensips.org>
<b>On Behalf Of </b>Ben Newlin<br>
<b>Sent:</b> July 31, 2019 10:34 AM<br>
<b>To:</b> OpenSIPS users mailling list <users@lists.opensips.org><br>
<b>Subject:</b> Re: [OpenSIPS-Users] Functional Difference B2B_Bridge between OpenSIP 1.8 and 2.4.2<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-bottom:3.0pt"><strong><span lang="EN-US" style="font-size:12.0pt;font-family:"Calibri",sans-serif;color:red;border:solid gray 3.0pt;padding:0cm;background:lightgrey">WARNING: External Email: Exercise Caution</span></strong><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman",serif"><br>
<br>
</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">I’m not sure about the B2B behavior, but is there a reason you are not migrating to 2.4.6, which is the latest supported 2.4 release? It’s possible this problem has already been reported and fixed.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="color:black">Ben Newlin </span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:12.0pt;color:black">From:
</span></b><span lang="EN-US" style="font-size:12.0pt;color:black">Users <<a href="mailto:users-bounces@lists.opensips.org">users-bounces@lists.opensips.org</a>> on behalf of Louis Rochon <<a href="mailto:Louis.Rochon@comtechtel.com">Louis.Rochon@comtechtel.com</a>><br>
<b>Reply-To: </b>OpenSIPS users mailling list <<a href="mailto:users@lists.opensips.org">users@lists.opensips.org</a>><br>
<b>Date: </b>Wednesday, July 31, 2019 at 10:29 AM<br>
<b>To: </b>"<a href="mailto:users@lists.opensips.org">users@lists.opensips.org</a>" <<a href="mailto:users@lists.opensips.org">users@lists.opensips.org</a>><br>
<b>Subject: </b>[OpenSIPS-Users] Functional Difference B2B_Bridge between OpenSIP 1.8 and 2.4.2<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoPlainText"><span lang="EN-US">Trying to upgrade my platform to OpenSIPS 2.4.2 (yea, about time, I know).<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">We use this to move established calls from one server to another:<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">/usr/local/sbin/opensipsctl fifo b2b_bridge <tupleID>
<a href="sip:555@1.2.3.4">sip:555@1.2.3.4</a> 0<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">This works fine with OpenSIPS 1.8. The above causes this:<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">1. Invite (reinvite) to caller with no sdp.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">2. RX of 200 OK with SDP from caller<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">3. Invite with SDP to 1.2.3.4<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">4. RX of 200 OK with SDP from 1.2.3.4<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">5. OpenSIPS send ACK WITH SDP to caller.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">Call moved. All good.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">With OpenSIPS 2.4.2:<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">1. Invite (reinvite) to caller with no sdp.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">2. RX of 200 OK with SDP from caller<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">3. Invite with SDP to 1.2.3.4<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">4. RX of 200 OK with SDP from 1.2.3.4<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">5. OpenSIPS send ACK WITHOUT SDP to caller.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">With 2.4.2, I get one way audio, very likely because of the lack of SDP in the ACK in point 5.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">My research does not lead me anywhere on how why this behaviour changed between 1.8 and 2.4.2. I can't find any flags to set to get b2b_bridge command to have to old behaviour.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">Help!<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">regards,<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">Louis<o:p></o:p></span></p>
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