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Hi,<br>
<br>
I made some fixes regarding some similar cases - BYE not being
transmitted on the other side, but only in trunk now. I will make the
backport now and let you know when it is done.<br>
<br>
Regards,<br>
<pre class="moz-signature" cols="72">--
Anca Vamanu
<a class="moz-txt-link-abbreviated" href="http://www.voice-system.ro">www.voice-system.ro</a></pre>
<br>
<br>
On 10/06/2010 07:45 PM, thrillerbee wrote:
<blockquote
cite="mid:AANLkTinVS=ctNb4BG+zVoqg4qfugpbYcJ-h4S=hsC6wR@mail.gmail.com"
type="cite">
<div class="gmail_quote">
<div>I've setup several OpenSIPS proxies (keeping track of
dialogs,acc,etc.) behind a OpenSIPS B2BUA (to implement topology hiding
- nothing else).</div>
<div>I'm currently using version 1.6.3 on both the proxy & b2bua.
I updated the b2bua modules from svn yesterday.</div>
<div><br>
Certain dialogs "hang" because of how the B2BUA handles an
inappropriate response to an INVITE in a never-established (canceled)
dialog coupled with the proxy establishing a dialog after a CANCEL has
been processed. </div>
<div><br>
</div>
<div>After the initial call attempt is canceled, the upstream carrier
responds with a 200 OK to the INVITE. The B2BUA sends that back to the
OpenSIPS proxy. The OpenSIPS proxy creates a dialog even though the
INVITE has been canceled. Soon afterwards, a BYE is received from
upstream but the B2BUA does not send that back to the proxy. As a
result, the dialog hangs (until the timeout is reached). I've tried to
show the call flow below:</div>
<div><br>
</div>
<div><font face="'courier new', monospace">proxy b2bua
carrier</font></div>
<div><font face="'courier new', monospace"><br>
</font></div>
<div><font face="'courier new', monospace">----- INV -----></font></div>
<div><font face="'courier new', monospace"><---- 100 ------</font></div>
<div><font face="'courier new', monospace"> ------ INV
----></font></div>
<div><font face="'courier new', monospace"> <-----
100 -----</font></div>
<div><font face="'courier new', monospace"> <-----
183 -----</font></div>
<div><font face="'courier new', monospace"><---- 183 ------</font></div>
<div><font face="'courier new', monospace">--- CANCEL ----></font></div>
<div><font face="'courier new', monospace"><- 200(cancel)--</font></div>
<div><font face="'courier new', monospace"> --- CANCEL
----></font></div>
<div><font face="'courier new', monospace"> <-
200(cancel)--</font></div>
<div><font face="'courier new', monospace"> <-
200(invite)--</font></div>
<div><font face="'courier new', monospace"><- 200(invite)--</font></div>
<div><font face="'courier new', monospace"><span
style="font-family: arial;">
<div><font face="'courier new', monospace"> <-
200(invite)--</font></div>
<div><font face="'courier new', monospace"><- 200(invite)--</font></div>
<div><font face="'courier new', monospace"><span
style="font-family: arial;">
<div><font face="'courier new', monospace"> <-
200(invite)--</font></div>
<div><font face="'courier new', monospace"><- 200(invite)--</font></div>
<div><font face="'courier new', monospace"><span
style="font-family: arial;">
<div><font face="'courier new', monospace"> <-
200(invite)--</font></div>
<div><font face="'courier new', monospace"><- 200(invite)--</font></div>
</span></font></div>
</span></font></div>
</span></font></div>
<div><span style="font-family: 'courier new',monospace;"><-
200(invite)--</span></div>
<div><span style="font-family: 'courier new',monospace;"><-
200(invite)--</span></div>
<div><span style="font-family: 'courier new',monospace;"><-
200(invite)--</span></div>
<div><span style="font-family: 'courier new',monospace;"><-
200(invite)--</span></div>
<div><span style="font-family: 'courier new',monospace;">
<----- BYE -----</span></div>
<div><span style="font-family: 'courier new',monospace;"><span
style="font-family: arial;">
<div><span style="font-family: 'courier new',monospace;"><-
200(invite)--</span></div>
<div><span style="font-family: 'courier new',monospace;"><span
style="font-family: arial;">
<div><span style="font-family: 'courier new',monospace;">
<----- BYE -----</span></div>
<div><span style="font-family: 'courier new',monospace;"><span
style="font-family: arial;">
<div><span style="font-family: 'courier new',monospace;"><-
200(invite)--</span></div>
</span></span></div>
</span></span></div>
<div><span style="font-family: 'courier new',monospace;"><br>
</span></div>
<div>I'm hoping I'm doing something stupid in my implementation that
could cause this behavior. Thanks for any help that might resolve this
issue.</div>
</span></span></div>
<div><br>
</div>
</div>
<br>
<pre wrap="">
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