<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:verdana, helvetica, sans-serif;font-size:10pt"><div><font class="Apple-style-span" face="tahoma, 'new york', times, serif">Hello Anca,</font></div><div><font class="Apple-style-span" face="tahoma, 'new york', times, serif"><br></font></div><div><font class="Apple-style-span" face="tahoma, 'new york', times, serif"><br></font></div><div><font class="Apple-style-span" face="tahoma, 'new york', times, serif">Thanks for your quick reply.</font></div><div><font class="Apple-style-span" face="tahoma, 'new york', times, serif">Just wanted to make sure that I understand what you are saying.</font></div><div><font class="Apple-style-span" face="tahoma, 'new york', times, serif"><br></font></div><div><font class="Apple-style-span" face="tahoma, 'new york', times, serif">Are you saying that B2BUA needs to be in the middle of the UE-A to UE-C
and</font></div><div><font class="Apple-style-span" face="tahoma, 'new york', times, serif">UE-C to UE-B calls ?</font></div><div><font class="Apple-style-span" face="tahoma, 'new york', times, serif"><br></font></div><div><font class="Apple-style-span" face="tahoma, 'new york', times, serif">I am not planning on sending a Re-Invite to UE-B, but a new INVITE w/replaces.</font></div><div><font class="Apple-style-span" face="tahoma, 'new york', times, serif"><br></font></div><div><font class="Apple-style-span" face="tahoma, 'new york', times, serif">thanks,</font></div><div><font class="Apple-style-span" face="tahoma, 'new york', times, serif">--Jignesh</font></div><div><font class="Apple-style-span" face="tahoma, 'new york', times, serif">======================</font></div><div><span class="Apple-style-span" style="font-family: tahoma, 'new york', times, serif; "><br></span></div><div><meta http-equiv="content-type" content="text/html;
charset=utf-8"><span class="Apple-style-span" style="font-family: tahoma, 'new york', times, serif; ">Message: 2<br>Date: Fri, 09 Jul 2010 11:15:16 +0300<br>From: Anca Vamanu <<a ymailto="mailto:anca@opensips.org" href="mailto:anca@opensips.org">anca@opensips.org</a>><br>Subject: Re: [OpenSIPS-Users] re : Question about B2BUA modules..<br>To: <a ymailto="mailto:users@lists.opensips.org" href="mailto:users@lists.opensips.org">users@lists.opensips.org</a><br>Message-ID: <<a ymailto="mailto:4C36DA94.5000607@opensips.org" href="mailto:4C36DA94.5000607@opensips.org">4C36DA94.5000607@opensips.org</a>><br>Content-Type: text/plain; charset="iso-8859-1"<br><br>Hi Jignesh,<br><br>This scenario will work with the B2BUA component if you use the refer <br>scenario, but you have to put the B2BUA in the middle of the call from <br>the beginning (the call where the REFER is received, in your example <br>from UE-C to UE-B), it is not
possible othervise for it to send a <br>reInvite in that dialog if it is not controlling it. The only thing that <br>you won't see is the Notify at the end sent to UC-E, now B2BUA does not <br>send this.<br><br>Regards,<br><br>-- <br>Anca Vamanu<br>www.voice-system.ro<br><br><br><br><br>On 07/08/2010 11:30 PM, jignesh gandhi wrote:<br>> Hello Anca,<br>><br>> I have read the b2bua tutorial and have opensips 1.62 installed.<br>> I am mainly interested in the REFER scenario..<br>><br>> Would the current implementation of the b2bua support the following <br>> scenario ?<br>><br>> UE-A calls UE-C and are in a call. UE-C puts UE-A on hold.<br>> UE-C call UE-B and are in a call. UE-C puts UE-B on hold.<br>><br>> OpenSIPs is not in the path of the original calls.<br>><br>> Before UE-C bridges UE-A and UE-B, UE-C wishes to get out the middle <br>> of the call.<br>> One way
would be to send a REFER to UE-B .<br>><br>> What if the switch UE-B is connected to does not support REFER ? So I <br>> want to do the following..<br>><br>> UE-C sends a REFER to SIP-AS ( OPENSIPS ) and upon receipt of the REFER,<br>> using the B2BUA , the SIP-AS would send an INVITE w/replaces and no <br>> SDP to UE-B<br>> Upon receiving the 200 Ok w/SDP. the SIP-AS would send an INVITE to <br>> UE-A with the<br>> SDP received from UE-B's 200 Ok. Upon receiving an ACK from UE-A , <br>> SIP-AS would<br>> send an ACK back to UE-B and an INFO message to UE-C and appropriate BYEs.<br>><br>> Below is a simple flow chart...<br>><br>><br>> UE-C REFER------------------> OPENSIPS B2BUA(SIP_AS) <br>> UE-B<br>>
INVITE w/replaces no <br>> SDP----------------------><br>> <------------------------------------------200 OK w/SDP(1)<br>> INVITE w/ SDP (1) <br>> UE-A<br>> <br>> ---------------------------------><br>> <----------------200 OK w/SDP<br>><br>> <br>>
ACK---------------------------------------------------><br>><br>> <br>> ACK---------------------------><br>> <-------------------------NOTIFY<br>><br>> thanks in advance for your help,<br>> --Jignesh<br>-------------- next part --------------<br>An HTML attachment was scrubbed...<br>URL: <a href="http://lists.opensips.org/pipermail/users/attachments/20100709/7df1c308/attachment-0001.htm" target="_blank">http://lists.opensips.org/pipermail/users/attachments/20100709/7df1c308/attachment-0001.htm</a> <br></span></div><div style="position:fixed"></div>
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