<div>Hi, </div><div>For this Asterisk or SEMS won't work , </div><div><br></div><div>So, it can Work on sip Application Server, with Cantata Media Service or Dialog Media Server </div><div><br></div><br clear="all">Thanks &Regards<br>
Ravi Prakash Sunkara<br>VoIP Architect & JAVA-SIP Developer<br>+91-9999882776<br>
<br><br><div class="gmail_quote">2009/2/4 Iņaki Baz Castillo <span dir="ltr"><<a href="mailto:ibc@aliax.net">ibc@aliax.net</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
2009/2/4 Padmaja R <<a href="mailto:urvthme@gmail.com">urvthme@gmail.com</a>>:<br>
<div class="Ih2E3d">> Say A and B are in a SIP call, and A and B suddenly decide to have a<br>
> conference with C. A puts B on hold and dials C' s number. After call<br>
> between A and C is up, if A presses hook flash, this sends an invite to the<br>
> conference application namely: conf@openseratlocalhost:5060 (which is the ip<br>
> and port number at which my openser proxy would be listening). The server<br>
> should then send back 200 Ok with the contact header containing the isfocus"<br>
> parameter of the form -Contact: <sip:conference1@mediaproxyip;isfocus> The<br>
> isfocus is an RFC 4579 based feature. The 200 Ok responses to other invites<br>
> (normal calls that do not create conference) should not include this isfocus<br>
> in the contact header of 200 Ok.<br>
><br>
> Finally, the openser proxy should be able to contact the media proxy on<br>
> receiving an invite to create the conference and send that ip and focus<br>
> information in the 200 Ok. The UA -A would then send a REFER to B and C to<br>
> refer to the media server and they disconnect with A. Then all three UAs<br>
> would individually send invite to the uri returned in the contact header and<br>
> join the conference.<br>
<br>
</div>That is not a proxy task, but a SIP application server (probably a<br>
B2BUA) even if it just handles signalling.<br>
<font color="#888888"><br>
<br>
--<br>
Iņaki Baz Castillo<br>
<<a href="mailto:ibc@aliax.net">ibc@aliax.net</a>><br>
</font><div><div></div><div class="Wj3C7c"><br>
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