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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Hi Amit,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">I had the same issue reported here last week. Here is the part how I solved it for the moment on Kamailio 4.3.5 with JsSIP:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">route[WITHINDLG] {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> if (!has_totag()) {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> return;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> }<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> if (loose_route()) {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> if ($du == "") {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> if (!handle_ruri_alias()) {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> xlog("L_ERR", "Bad alias <$ru>\n");<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> sl_send_reply("400", "Bad Request");<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> exit;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> }<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> }<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> if (is_method("BYE")) {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> setflag(FLT_ACC);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> setflag(FLT_ACCFAILED);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> if (src_ip==$sel(cfg_get.pstn.gw_ip) && $fd==$sel(cfg_get.free.switch_ip)){<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> $du="sip:" + $sel(cfg_get.free.switch_ip) + ":" + $sel(cfg_get.free.switch_port) +
";transport=tls";<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> force_send_socket(tls:MY_INTERN_IP:MY_INTERN_PORT);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> }
<b>else if (proto==WSS && $ru=~"transport=ws") {<o:p></o:p></b></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> $ru = $tu;<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> lookup("location");<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> }<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> } else if (is_method("ACK")) {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">
<b>if (proto==WSS && $ru=~"transport=ws") {<o:p></o:p></b></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> $ru = $tu;<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> lookup("location");<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> }<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> }<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> route(RELAY);<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:35.4pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">} else {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> if (is_method("ACK")) {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> if (t_check_trans()) {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> route(RELAY);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> } else {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> exit;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> }<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> }<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> sl_send_reply("404","Not here");<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> }<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> exit;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">}<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">As you can see, the additions in bold, I had to retrieve the contact information from the DB again. This only apllies for communication from ws to
ws. This might be a n00bish solution but it works for me.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Best Regards<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Dimitry Nagorny<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Calibri",sans-serif">Trainee</span><span lang="EN-US" style="font-size:8.0pt;font-family:"Calibri",sans-serif;color:#7F7F7F"><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 style="font-size:11.0pt;font-family:"Calibri",sans-serif">Von:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> sr-users [mailto:sr-users-bounces@lists.sip-router.org]
<b>Im Auftrag von </b>Alexandru Covalschi<br>
<b>Gesendet:</b> Dienstag, 21. Juni 2016 13:50<br>
<b>An:</b> amit@avhan.com; Kamailio (SER) - Users Mailing List <sr-users@lists.sip-router.org><br>
<b>Betreff:</b> Re: [SR-Users] WS to WS calls - No ACK received for 200OK<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">The problem may be with record_route header. <o:p></o:p></p>
</div>
<p class="MsoNormal">Did you set <em>advertised_address?</em><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">2016-06-21 12:59 GMT+03:00 Amit Patkar <<a href="mailto:amit@avhan.com" target="_blank">amit@avhan.com</a>>:<o:p></o:p></p>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm">
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<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:black">Hi<br>
<br>
I am using Kamailio as Websocket proxy.<br>
<br>
User 1 & User 2 are registered on Kamailio over WebSocket.<br>
When User 1 calls User 2, User 2 gets ring and answers the call. 200 OK message is received by User 1 but ACK response sent by User 1 does not reach User 2. Since User 2 didn't get ACS, after 30 sec timeout it drops the call.<br>
Media is exchanged for 30 seconds, which means ICE is successful. <br>
<br>
I am running kamailio 4.3.3 on <br>
<br>
Kamailio is behind firewall and running on private IP. <br>
rtpengine is configured to handle media.<br>
All ports are forwarded to kamailio server and Kamailio is allowed to send data on any public IP.<br>
<br>
I used jssip & sipml framework to test. Result was same for both frameworks. No ACK received<br>
<br>
I can see following errors in log file. What could be the reason which indicate ACK was not forwarded<br>
<br>
Jun 21 14:55:41 acstemplate /usr/sbin/kamailio[6584]: NOTICE: acc [acc.c:317]: acc_log_request(): ACC: transaction answered: timestamp=1466501141;method=INVITE;from_tag=7926B9NR7U0X99ZfAr1T;to_tag=w3D2JGd2EUFJpobTcFyo;call_id=1edc8e15-f1f1-584d-df81-71c3d59d713d;code=200;reason=OK;src_user=10001;src_domain=<a href="http://xxxx.com" target="_blank">xxxx.com</a>;src_ip=xxx.yyy.zzz.aaa;dst_ouser=10002;dst_user=10002;dst_domain=df7jal23ls0d.invalid<br>
Jun 21 14:55:41 acstemplate /usr/sbin/kamailio[6582]: ERROR: <core> [forward.c:529]: forward_request(): cannot forward to af 2, proto 5 no corresponding listening socket<br>
Jun 21 14:55:41 acstemplate /usr/sbin/kamailio[6582]: ERROR: sl [sl_funcs.c:363]: sl_reply_error(): ERROR: sl_reply_error used: I'm terribly sorry, server error occurred (7/SL)<br>
Jun 21 14:55:42 acstemplate /usr/sbin/kamailio[6584]: INFO: <script>: WS to WS<br>
Jun 21 14:55:42 acstemplate /usr/sbin/kamailio[6582]: ERROR: <core> [forward.c:529]: forward_request(): cannot forward to af 2, proto 5 no corresponding listening socket<br>
Jun 21 14:55:42 acstemplate /usr/sbin/kamailio[6582]: ERROR: sl [sl_funcs.c:363]: sl_reply_error(): ERROR: sl_reply_error used: I'm terribly sorry, server error occurred (7/SL)<br>
Jun 21 14:55:46 acstemplate /usr/sbin/kamailio[6582]: ERROR: <core> [forward.c:529]: forward_request(): cannot forward to af 2, proto 5 no corresponding listening socket<br>
Jun 21 14:55:46 acstemplate /usr/sbin/kamailio[6582]: ERROR: sl [sl_funcs.c:363]: sl_reply_error(): ERROR: sl_reply_error used: I'm terribly sorry, server error occurred (7/SL)<br>
Jun 21 14:55:51 acstemplate /usr/sbin/kamailio[6582]: ERROR: <core> [forward.c:529]: forward_request(): cannot forward to af 2, proto 5 no corresponding listening socket<br>
Jun 21 14:55:51 acstemplate /usr/sbin/kamailio[6582]: ERROR: sl [sl_funcs.c:363]: sl_reply_error(): ERROR: sl_reply_error used: I'm terribly sorry, server error occurred (7/SL)<br>
Jun 21 14:55:57 acstemplate /usr/sbin/kamailio[6582]: ERROR: <core> [forward.c:529]: forward_request(): cannot forward to af 2, proto 5 no corresponding listening socket<br>
Jun 21 14:55:57 acstemplate /usr/sbin/kamailio[6582]: ERROR: sl [sl_funcs.c:363]: sl_reply_error(): ERROR: sl_reply_error used: I'm terribly sorry, server error occurred (7/SL)<br>
Jun 21 14:56:13 acstemplate /usr/sbin/kamailio[6581]: ERROR: <core> [forward.c:529]: forward_request(): cannot forward to af 2, proto 5 no corresponding listening socket<br>
Jun 21 14:56:13 acstemplate /usr/sbin/kamailio[6581]: ERROR: sl [sl_funcs.c:363]: sl_reply_error(): ERROR: sl_reply_error used: I'm terribly sorry, server error occurred (7/SL)<br>
<br>
</span><o:p></o:p></p>
<pre><span style="color:black">I searched list for similar issues but could not find match any<o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black">Help to resolve this issue is appreciated.<o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black">Thanks & Regards,<o:p></o:p></span></pre>
<pre><span style="color:black">Amit Patkar<o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
_______________________________________________<br>
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list<br>
<a href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a><br>
<a href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users" target="_blank">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><o:p></o:p></p>
</blockquote>
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<p class="MsoNormal"><br>
<br clear="all">
<br>
-- <o:p></o:p></p>
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<p class="MsoNormal">Alexandru Covalschi<br>
ABRISS-Solutions<o:p></o:p></p>
<div>
<p class="MsoNormal">VoIP engineer and system administrator<br>
tel: +37367398493<br>
web: <a href="http://abs-telecom.com/" target="_blank">http://abriss.solutions/</a><o:p></o:p></p>
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