<div dir="ltr">Anthony, there was a question earlier in the thread about how Websockets and TCP differ in this scenario. Is it not the case that they are conceptually equivalent here? Would this issue also manifest with TCP, or are the code paths significantly different between Websocket and TCP?</div><div class="gmail_extra"><br><div class="gmail_quote">On 27 March 2015 at 19:38, Anthony Minessale <span dir="ltr"><<a href="mailto:anthony.minessale@gmail.com" target="_blank">anthony.minessale@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">You could probably use a proxy like kamailio or opensips to translate the websockets to UDP or TCP and pass it on to FS but FS itself cannot be modified to do what you want.<div><br></div></div><div class="gmail_extra"><div><div class="h5"><br><div class="gmail_quote">On Fri, Mar 27, 2015 at 5:31 PM, Michael Jerris <span dir="ltr"><<a href="mailto:mike@jerris.com" target="_blank">mike@jerris.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">I understand what you are trying to do. The current sofia code has no way to handle this currently, and we don't have plans to add this functionality, because we can already do so with mod_verto. If you want this functionality in freeswitch, your options are using mod_verto, or a huge amount of c code in mod_sofia that will be very error prone as it will have to turn the state engine in that module on its head.<div><div><div><br><div><blockquote type="cite"><div>On Mar 27, 2015, at 5:31 PM, Mateus Dalepiane <<a href="mailto:mdalepiane@gmail.com" target="_blank">mdalepiane@gmail.com</a>> wrote:</div><br><div><div dir="ltr"><div>Hey guys,<br><br></div><div>Thank you all for the attention and patience to respond my questions.<br></div><div><br></div><div>I understand that the ideal solution would be to use Verto, but that's not practicable in our project right now.<br><br></div><div class="gmail_extra">So, about the reconnected session, I am not sure if I made myself clear about what is happening, and what I am trying to do.<br><br><span style="font-family:monospace,monospace"> WebRTC client . . . nginx . . . . FreeSWITCH<br> (SIP.js) proxy |<br> | | |<br> | CONNECT | |<br> |---------------->| |<br> | INVITE |<br> |---------------------------------->|<br> | OK |<br> |<----------------------------------|<br> | ACK |<br> |---------------------------------->|<br> | Media Session |<br> |<=================================>|<br> | . |<br> | . |<br> | . |<br> | CONNECTION FAIL | |<br> |<-----XXXX------>| |<br> | Media continues to flow |<br> |<=================================>|<br> | CONNECT | |<br> |---------------->| |<br> | re-INVITE |<br> |---------------------------------->|<br> | OK |<br> |<----------------------------------|<br> | ACK |<br> |---------------------------------->|<br> | . |<br> | . |<br> | . |<br> | | INVITE |<br> | |<------XXX-------|<br> | | | FS hang up call<br> | Media stop flowing |<br> |<==============XXXXX==============>|</span><br><br></div><div class="gmail_extra">So, based on this scenario, when the Websocket connection to nginx fails, we reconnect it, but since the media is going through other connections, RTP over UDP, it is not affected.<br><br></div><div class="gmail_extra">Now, with the new websocket connection in place the client is able to send re-INVITEs and BYE to FS, and it is recognized as requests for the session established using the first connection.<br><br></div><div class="gmail_extra">The problem is that when FS tries to send a message to the client it fails (NORMAL_TEMPORARY_FAILURE) and hangs up the call.<br><br></div><div class="gmail_extra">Right now my question is:<br></div><div class="gmail_extra"> - How does FS know which connection it should use to send SIP messages to the client?<br><br></div><div class="gmail_extra">Thank you!<br><br></div><div class="gmail_extra"><div class="gmail_quote">2015-03-27 17:15 GMT-03:00 Michael Jerris <span dir="ltr"><<a href="mailto:mike@jerris.com" target="_blank">mike@jerris.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="word-wrap:break-word">verto has its own JS client in tree.<div><br><div><blockquote type="cite"><div><div><div>On Mar 27, 2015, at 4:05 PM, Abdul Hakeem <<a href="mailto:alhakeem@gmail.com" target="_blank">alhakeem@gmail.com</a>> wrote:</div><br></div></div><div><div style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span>Hi Guys,<u></u><u></u></span></div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span>What’s the best recommended client to connect to<span> </span><span>Verto</span><span> </span>?<u></u><u></u></span></div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span>Cheers,<u></u><u></u></span></div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span>Abdul Hakeem<u></u><u></u></span></div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><a name="14c5d641a304c187_14c5d5d065010f2b_14c5ce3d7d878ebd__MailEndCompose"> </a></div><span></span><div><div style="border-style:solid none none;border-top:1pt solid rgb(181,196,223);padding:3pt 0cm 0cm"><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><b><span style="font-size:10pt;font-family:Tahoma,sans-serif" lang="EN-US">From:</span></b><span style="font-size:10pt;font-family:Tahoma,sans-serif" lang="EN-US"><span> </span><a href="mailto:freeswitch-users-bounces@lists.freeswitch.org" target="_blank">freeswitch-users-bounces@lists.freeswitch.org</a> [<a href="mailto:freeswitch-users-bounces@lists.freeswitch.org" target="_blank">mailto:freeswitch-users-bounces@lists.freeswitch.org</a>]<span> </span><b>On Behalf Of<span> </span></b>Michael<span> </span><span>Jerris</span><br><b>Sent:</b><span> </span>Friday, March 27, 2015 7:43 PM<br><b>To:</b><span> </span>FreeSWITCH Users Help<br><b>Subject:</b><span> </span>Re: [Freeswitch-users] Re-establish connection within a SIP session<u></u><u></u></span></div></div></div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><u></u> <u></u></div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span>This is not a feature in any of the sip<span> </span><span>js</span><span> </span>stacks I know of, and I'm not quite sure how it would be implemented on top of sip. As Brian said, this is a feature in<span> </span><span>verto</span>.<u></u><u></u></span></div></div></div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span> </span></div><div><blockquote style="margin-top:5pt;margin-bottom:5pt" type="cite"><div><div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span>On Mar 27, 2015, at 3:28 PM,<span> </span><span>Mateus</span><span> </span><span>Dalepiane</span><span> </span><<a href="mailto:mdalepiane@gmail.com" style="color:purple;text-decoration:underline" target="_blank">mdalepiane@gmail.com</a>> wrote:<u></u><u></u></span></div></div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span> </span></div></div></div><div><div><div><div><div><div><p class="MsoNormal" style="margin:0cm 0cm 12pt;font-size:12pt;font-family:"Times New Roman",serif"><span>Hello Brian,<u></u><u></u></span></p></div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span>Thank you for the answer. We will consider using<span> </span><span>Verto</span><span> </span>in the future.<br><br>Right now we will have to stick with WebRTC over SIP, we are using SIP.js for that.<br><br>I ran some more tests and once the<span> </span><span>Websocket</span><span> </span>connection drops and is re-established,<u></u><u></u></span></div></div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span>even if we send a re-INVITE, FS identifies it as belonging to the old call, and<u></u><u></u></span></div></div><div><p class="MsoNormal" style="margin:0cm 0cm 12pt;font-size:12pt;font-family:"Times New Roman",serif"><span>responds to it, after a while FS hangs up the call reporting a NORMAL_TEMPORARY_FAILURE.<u></u><u></u></span></p></div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span>If the<span> </span><span>Websocket</span><span> </span>is not disconnected, I can see that FS sends an re-INVITE to the client after a while,<u></u><u></u></span></div></div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span>so I guess that what is happening is that when FS tries to send this re-INVITE it realizes that the old connection<u></u><u></u></span></div></div><div><p class="MsoNormal" style="margin:0cm 0cm 12pt;font-size:12pt;font-family:"Times New Roman",serif"><span>was closed and hangs up the call.<u></u><u></u></span></p></div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span>My question now is: Why FS does not update the connection information for the call once the re-INVITE from<br>the new connection is received?<u></u><u></u></span></div></div></div></div></div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span> </span></div><div><div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span>2015-03-26 15:15 GMT-03:00 Brian West <<a href="mailto:brian@freeswitch.org" style="color:purple;text-decoration:underline" target="_blank">brian@freeswitch.org</a>>:<u></u><u></u></span></div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span>Have you taken a look at<span> </span><span>Verto</span>?<u></u><u></u></span></div></div></div></div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span> </span></div><div><div><div><div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span>On Thu, Mar 26, 2015 at 12:08 PM,<span> </span><span>Mateus</span><span> </span><span>Dalepiane</span><span> </span><<a href="mailto:mdalepiane@gmail.com" style="color:purple;text-decoration:underline" target="_blank">mdalepiane@gmail.com</a>> wrote:<u></u><u></u></span></div></div></div></div></div><blockquote style="border-style:none none none solid;border-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin-left:4.8pt;margin-right:0cm" type="cite"><div><div><div><div><div><div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span style="font-size:11.5pt;font-family:Arial,sans-serif">We have the following scenario: The session is established between WebRTC and FreeSWITCH using<span> </span><span>Websockets</span>.</span><span><u></u><u></u></span></div></div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span> </span></div></div></div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span style="font-size:11.5pt;font-family:Arial,sans-serif">Once the session is established, if the<span> </span><span>websocket</span><span> </span>connection drops the media continues to flow<span> </span><span>util</span>FreeSWITCH tries to send a re-INVITE to the client. At this point it realizes that the connection was closed and hangs up the call.</span><span><u></u><u></u></span></div></div><span><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span> </span></div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span style="font-size:11.5pt;font-family:Arial,sans-serif">Now, if the<span> </span><span>websocket</span><span> </span>connection drops and is re-established, would it be possible to inform FreeSWITCH that the new connection should be used for the previously established session?</span><span><u></u><u></u></span></div></div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span> </span></div><div><div style="margin:0cm 0cm 0.0001pt;font-size:12pt;font-family:"Times New Roman",serif"><span style="font-size:11.5pt;font-family:Arial,sans-serif">If the WebRTC client sends an INVITE message with the old session parameters, FreeSWITCH will be able to understand that it belongs to the old session?</span></div></div></span></div></div></div></div></blockquote></div></div></div></div></div></blockquote></div></div></div></div></blockquote></div></div></div><br>_________________________________________________________________________<br>
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<a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br></blockquote></div><br><br clear="all"><div><br></div></div></div><span class="HOEnZb"><font color="#888888">-- <br><div><div dir="ltr"><div><div dir="ltr">Anthony Minessale II ♬ @anthmfs ♬ @FreeSWITCH ♬<div><br><div>☞ <a href="http://freeswitch.org/" target="_blank">http://freeswitch.org/</a> ☞ <a href="http://cluecon.com/" target="_blank">http://cluecon.com/</a> ☞ <a href="http://twitter.com/FreeSWITCH" target="_blank">http://twitter.com/FreeSWITCH</a></div><div><div>☞ <a href="http://irc.freenode.net" target="_blank">irc.freenode.net</a> #freeswitch ☞ <u><a href="http://freeswitch.org/g+" target="_blank">http://freeswitch.org/g+</a></u><br><br></div><div>ClueCon Weekly Development Call <br></div><div>☎ <a href="mailto:sip%3A888@conference.freeswitch.org" target="_blank">sip:888@conference.freeswitch.org</a> ☎ <a href="tel:%2B19193869900" value="+19193869900" target="_blank">+19193869900</a> </div><div><br></div></div></div><div><a href="https://www.youtube.com/watch?v=9XXgW34t40s" style="color:rgb(17,85,204);font-size:12.8000001907349px" target="_blank">https://www.youtube.com/watch?v=9XXgW34t40s</a></div></div></div></div></div>
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