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<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Hi,<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>I have the following topology in
my lab:<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style='color:#1F497D'>[tls]<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>&nbsp;[UA1] -</span><span
style='color:#1F497D'>----</span><span style='color:#1F497D'>-+<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span style='color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
style='color:#1F497D'>|+ &nbsp;[sip peer]-------------------------[opensips]<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>[UA2] -</span><span
style='color:#1F497D'>----</span><span style='color:#1F497D'>-+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[tls]<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style='color:#1F497D'>[tls]<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Scenario: &nbsp;UA1 calls UA2
(via opensips proxy. Meaning invite from SIP peer is sent to the opensips and
proxied back to the same SIP peer)<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Failure:<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>ACK Request after
&#8220;200OK&#8221; from UA1 is sent to SIP peer and then to the opensips proxy
but swallowed by the opensips proxy!<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>The following error appear in
log:<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Note: Using opensips 1.6.2 with
TLS</span><span style='color:#1F497D'> support (attached opensips config file)</span><span
style='color:#1F497D'><o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:47:54
sbin/opensips[12296]: NOTICE:signaling:mod_init: initializing module ...<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:47:54 sbin/opensips[12296]:
INFO:sl:mod_init: Initializing StateLess engine<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:47:54
sbin/opensips[12296]: INFO:tm:mod_init: TM - initializing...<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:47:54
sbin/opensips[12296]: INFO:core:main: using 1 Mb private memory per process<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:47:54 sbin/opensips[12296]:
INFO:maxfwd:mod_init: initializing...<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:47:54
sbin/opensips[12296]: INFO:usrloc:ul_init_locks: locks array size 512<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:47:54
sbin/opensips[12296]: INFO:registrar:mod_init: initializing...<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:47:54
sbin/opensips[12296]: INFO:textops:mod_init: initializing...<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:47:54
sbin/opensips[12296]: INFO:xlog:mod_init: initializing...<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:47:54
sbin/opensips[12296]: INFO:acc:mod_init: initializing...<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:48:18
sbin/opensips[12300]: NOTICE:core:verify_callback: depth = 1<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:48:18
sbin/opensips[12300]: NOTICE:core:verify_callback: preverify is good: verify
return: 1<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:48:18
sbin/opensips[12300]: NOTICE:core:verify_callback: depth = 0<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:48:18
sbin/opensips[12300]: NOTICE:core:verify_callback: preverify is good: verify
return: 1<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:48:18
sbin/opensips[12300]: NOTICE:core:verify_callback: depth = 1<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:48:18
sbin/opensips[12300]: NOTICE:core:verify_callback: preverify is good: verify
return: 1<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:48:18
sbin/opensips[12300]: NOTICE:core:verify_callback: depth = 0<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:48:18
sbin/opensips[12300]: NOTICE:core:verify_callback: preverify is good: verify
return: 1<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Jul&nbsp; 5 15:48:37
sbin/opensips[12301]: ERROR:core:forward_request: cannot forward to af 2, proto
2 no correspondinglistening socket<o:p></o:p></span></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

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