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<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>To simplify the
call flow, I omitted the 100 Trying sent upstream by OpenSIPS for both INVITE
(1) and (2).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>You will find below
the complete call-flow<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>Only one INVITE
will be accepted, but I could not guess which one.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>The upstream
proxy provides the REGISTRAR function, thus it forks initial requests. This
proxy is on a private network.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>My OpenSIPS is the
link between the public and private networks.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>
openSIPS<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>
+------+<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>--
INVITE(1) -->| |--- INVITE(1) --><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'><-- 100(1)
------| |<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>
| |<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>--
INVITE(2) -->| |--- INVITE(2) --><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'><-- 100(2)
------| |<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'><-- 180(2)
------| |<-- 180(2) ------<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'><-- 200(2)
------| |<-- 200(2) ------<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>
| |<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>--
CANCEL(1) -->| |<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'><--
200(CANCEL) -| |<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'><-- 487(1)
------| |<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>-- ACK(1)
----->| |<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>
| |<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>-- ACK(2)
----->| |--- ACK(2) -----><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>
| |<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>
+------+<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>
|<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>
|<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>
+------+<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>
| |<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>
| |<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>
+------+<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:navy'>
RTP proxy<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>-----------------------------------------------------------<o:p></o:p></span></font></p>
<pre><font size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>This is an interesting question. The requests should have different tags<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>.I'm not sure how OpenSIPs handles the individual requests..<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>I'd tend to expect a 491 Request Pending or a 500 Requests Merged. But maybe<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>that's B2BUA behavior.<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>Since opensips isn't replying to the "second" INVITE, it's almost like it's<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>absorbing it as a retransmission. I'm not sure what your expected behavior<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>is, but it seems that you're going to constantly have race conditions on<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>this and that the outcome will be "random" (ie: does INVITE(1) hit first, or<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>INVITE(2))<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>What's the larger picture here? Why do you have two INVITEs from the same<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>call hitting your proxy?<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>-Brett<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>On Thu, Jan 21, 2010 at 8:50 AM, <st1:PersonName
ProductID="Yannick LE COENT" w:st="on">Yannick LE COENT</st1:PersonName> <</span><a
href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users"><span
lang=EN-GB>yannick.lecoent at nexcom.fr</span></a></font><span lang=EN-GB><o:p></o:p></span></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> wrote:<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> Hello,<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> The next figure describes my problem.<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> openSIPS<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> +------+<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> -- INVITE(1) -->| |--- INVITE(1) --><o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> | |<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> -- INVITE(2) -->| |--- INVITE(2) --><o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> <-- 180(2) ------| |<-- 180(2) ------<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> <-- 200(2) ------| |<-- 200(2) ------<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> | |<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> -- CANCEL(1) -->| |<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> <-- 200(CANCEL) -| |<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> <-- 487(1) ------| |<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> -- ACK(1) ----->| |<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> | |<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> -- ACK(2) ----->| |--- ACK(2) -----><o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> | |<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> +------+<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> |<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> |<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> +------+<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> | |<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> | |<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> +------+<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> RTP proxy<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> I use RTP proxy to relay media streams.<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> INVITE (1) and (2) have been forked from an upstream proxy, thus they have<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> the same Call-ID and From tag, and a different branch ID.<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> INVITE (2) is accepted, but INVITE (1) has no response.<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> The upstream proxy cancels INVITE (1).<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> In my script, on CANCEL(1) request I close the RTP session, but I should<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> not dot that since INVITE(2) has been accepted.<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> My questions are:<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> How can I know when I received CANCEL(1) that INVITE(2) has been accepted?<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> Do I need to use flags? Which ones ?<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt'>><i><span
style='font-style:italic'> Thanks for any help,<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>><i><span
style='font-style:italic'> Yannick<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>><i><span
style='font-style:italic'> _______________________________________________<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>><i><span
style='font-style:italic'> Users mailing list<o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>><i><span
style='font-style:italic'> <a
href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users">Users at lists.opensips.org</a><o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>><i><span
style='font-style:italic'> <a
href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><o:p></o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>><i><span
style='font-style:italic'><o:p> </o:p></span></i></span></font></pre>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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