<div dir="ltr">Thanks Daniel for your response.<div>My response in text inline.<br><br><div class="gmail_quote"><div dir="ltr">вт, 15 мая 2018 г. в 11:27, Daniel Grotti <<a href="mailto:dgrotti@sipwise.com">dgrotti@sipwise.com</a>>:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<tt>Hi Ssergey,<br>
the ACK seem OK, but the R-URI does not contain the "sip.instance"
parameter defined in the 200 OK's Contact. Usually all contact
parameter should be preserved when constructing the ACK R-URI.<br>
Does your server receive the ACK, but it is not able to forward it
back to the callee (if yes, do you see any ERROR in the logs) ?<br></tt></div></blockquote><div>Yes kamailio is received ACK message but not forwarder (loose routed) to callee. I not able to kamailio log (tow many debug info). I goes to clarify what need to look and then reproduce.</div><div>End user is reported silence after answer.</div><div>Here<br>1) caller side is FreeSwitch 1.6.20</div><div>2) callee side is forked linphone</div><div><br></div><div>Sergey</div><div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div text="#000000" bgcolor="#FFFFFF"><tt>
Or it just don't receive the ACK at all?</tt></div><div text="#000000" bgcolor="#FFFFFF"><tt><br>
<br>
Daniel<br>
<br>
<br>
<br>
<br>
<br>
</tt></div><div text="#000000" bgcolor="#FFFFFF">On 05/14/2018 08:39 PM, Sergey Safarov wrote:<br>
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<div dir="ltr">Hello
<div>I have a call with not passed ACK by Kamailio. <a href="http://prntscr.com/jhtobo" target="_blank">http://prntscr.com/jhtobo</a><br>
Same behaviour i looked before when SIP endpoint contact
string is wrong</div>
<div>In this call look as contact string correct is correct
(packets 7 and 8) and i not understand why ACK (packet 9) not
passed to callee.<br>
<br>
Could you help me understand this.<br>
<br>
</div>
<div>PCAP file is create using homer tracer and TCP transport
packets is stored as UDP.</div>
<div> </div>
<div>Sergey</div>
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