<div dir="auto"><div>Yes Daniel, that is precisely so. <br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 9, 2019, 7:10 AM Daniel-Constantin Mierla, <<a href="mailto:miconda@gmail.com">miconda@gmail.com</a>> wrote:<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">
<p>To be sure I understand properly: do they require to send a
CANCEL back to them for calls that they initiate with the first
INVITE and do not get 200ok, but 3xx/4xx/5xx?</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div class="m_1528559514255750559moz-cite-prefix">On 08.04.19 17:34, Sergiu Pojoga wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">Looks like it's going to be another battle with a
Metaswitch-based carrier... so far they are telling me 'we
can't do anything about it. Send us a CANCEL to tear down the
call`
<div><br>
</div>
<div>I know this is a `another story` question, but if I had
to overcome this, would <b>uac_req_send() </b>be my only
option?</div>
<div><br>
</div>
<div>Thanks again,</div>
<div>--Sergiu</div>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, Apr 8, 2019 at 2:15 AM
Daniel-Constantin Mierla <<a href="mailto:miconda@gmail.com" target="_blank" rel="noreferrer">miconda@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF">
<p><br>
</p>
<div class="m_1528559514255750559gmail-m_-8614156434403695944moz-cite-prefix">On
07.04.19 15:40, Sergiu Pojoga wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">To simplify, the problem seems to
come down to the following: how do you cancel/end
an early state dialog between the caller and
callee after `fr_inv_timeout` occurs? Kam
self-generates a proper CANCEL towards the callee,
while the caller gets a `408 Request Timeout' with
a different To-tag.</div>
</div>
</div>
</div>
</blockquote>
<p>That's all required not to have a dialog completed, but
faild. There is no need to send a BYE or another CANCEL.
The INVITE got the 408, not 200.</p>
<p>Cheers,<br>
Daniel<br>
</p>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">
<div><br>
</div>
<div>I've tried:</div>
<div>dlg_bye("all") - throws an error,
non-confirmed dialogs can't be terminated with
this function<br>
</div>
<div>t_cancel_callid("$dlg(callid)",
"$dlg(from_cseq)", "22", "200") - doesn't seem
to produce any action<br>
</div>
<div><br>
</div>
<div>Suggestions?</div>
</div>
</div>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Sat, Apr 6, 2019 at
11:25 AM Sergiu Pojoga <<a href="mailto:pojogas@gmail.com" target="_blank" rel="noreferrer">pojogas@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div dir="ltr">Hi ppl,<br>
<div><br>
</div>
<div>Scenario: invite from upstream is t_relayed
to a client gateway. After `fr_inv_timeout`
occurs, in a failure route I simply t_reply with
"503 - Service unavailable", then exit(). </div>
<div><br>
</div>
<div>However, the upstream provider simply ignores
this reply, call doesn't hang up. This doesn't
happen when the client's gateway generates
identical 503 or other negative replies.</div>
<div><br>
</div>
<div>I suspect this is happening because the
To-tag in the Kam generated 503 reply doesn't
match with the To-tag that previously was
forwarded from the client's gateway to the
upstream provider in the `180 Ringing`.</div>
<div><br>
</div>
<div>Any suggestions what can be done about it?</div>
<div><br>
</div>
<div><br>
</div>
<div>
<div>2019/04/06 10:42:46.127177
65.39.xxx.xxx:5060 -> 208.72.xxx.xxx:5060
</div>
<div>SIP/2.0 180 Ringing
</div>
<div>Via: SIP/2.0/UDP
208.72.xxx.xxx:5060;received=208.72.xxx.xxx;rport=5060;branch=z9hG4bK1982422573
</div>
<div>Record-Route: <a class="m_1528559514255750559gmail-m_-8614156434403695944moz-txt-link-rfc2396E" rel="noreferrer"><sip:65.39.xxx.xxx;lr=on;did=915.8af1></a>
</div>
<div>From: "SERGIU" <a class="m_1528559514255750559gmail-m_-8614156434403695944moz-txt-link-rfc2396E" rel="noreferrer"><sip:514XXXXXXX@208.72.xxx.xxx></a>;isup-oli=00;tag=1975755942
</div>
<div>To: <a class="m_1528559514255750559gmail-m_-8614156434403695944moz-txt-link-rfc2396E" rel="noreferrer"><sip:514XXXXXXX@65.39.xxx.xxx></a>;tag=<font color="#ff0000">as2ab54180 </font>
</div>
<div>Call-ID: <a class="m_1528559514255750559gmail-m_-8614156434403695944moz-txt-link-abbreviated" href="mailto:DID-28270826@208.72.xxx.xx" target="_blank" rel="noreferrer">DID-28270826@208.72.xxx.xx</a>
</div>
<div>CSeq: 477023 INVITE
</div>
<div>Supported: replaces, timer, path
</div>
<div>Contact: <a class="m_1528559514255750559gmail-m_-8614156434403695944moz-txt-link-rfc2396E" rel="noreferrer"><sip:1514XXXXXXX@65.39.xxx.xxx:5060></a>
</div>
<div>Content-Length: 0
</div>
<div>
</div>
<div>
</div>
<div>2019/04/06 10:42:51.072516
65.39.xxx.xxx:5060 -> 208.72.xxx.xxx:5060
</div>
<div>SIP/2.0 503 Service Unavailable
</div>
<div>Call-ID: <a class="m_1528559514255750559gmail-m_-8614156434403695944moz-txt-link-abbreviated" href="mailto:DID-28270826@208.72.xxx.xx" target="_blank" rel="noreferrer">DID-28270826@208.72.xxx.xx</a>
</div>
<div>Via: SIP/2.0/UDP
208.72.xxx.xxx:5060;rport=5060;branch=z9hG4bK1982422573;received=208.72.xxx.xxx
</div>
<div>From: "SERGIU" <a class="m_1528559514255750559gmail-m_-8614156434403695944moz-txt-link-rfc2396E" rel="noreferrer"><sip:514XXXXXXX@208.72.xxx.xxx></a>;isup-oli=00;tag=1975755942
</div>
<div>To: <a class="m_1528559514255750559gmail-m_-8614156434403695944moz-txt-link-rfc2396E" rel="noreferrer"><sip:514XXXXXXX@65.39.xxx.xxx></a>;tag=<font color="#ff0000">a6a1c5f60faecf035a1ae5b6e96e979a-8e82</font>
</div>
<div>CSeq: 477023 INVITE
</div>
<div>Server: KAM
</div>
<div>Content-Length: 0 </div>
</div>
<div><br>
</div>
<div>Thanks,</div>
<div>--Sergiu</div>
</div>
</div>
</blockquote>
</div>
<br>
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<pre class="m_1528559514255750559gmail-m_-8614156434403695944moz-quote-pre">_______________________________________________
Kamailio (SER) - Users Mailing List
<a class="m_1528559514255750559gmail-m_-8614156434403695944moz-txt-link-abbreviated" href="mailto:sr-users@lists.kamailio.org" target="_blank" rel="noreferrer">sr-users@lists.kamailio.org</a>
<a class="m_1528559514255750559gmail-m_-8614156434403695944moz-txt-link-freetext" href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" target="_blank" rel="noreferrer">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a>
</pre>
</blockquote>
<pre class="m_1528559514255750559gmail-m_-8614156434403695944moz-signature" cols="72">--
Daniel-Constantin Mierla -- <a class="m_1528559514255750559gmail-m_-8614156434403695944moz-txt-link-abbreviated" href="http://www.asipto.com" target="_blank" rel="noreferrer">www.asipto.com</a>
<a class="m_1528559514255750559gmail-m_-8614156434403695944moz-txt-link-abbreviated" href="http://www.twitter.com/miconda" target="_blank" rel="noreferrer">www.twitter.com/miconda</a> -- <a class="m_1528559514255750559gmail-m_-8614156434403695944moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda" target="_blank" rel="noreferrer">www.linkedin.com/in/miconda</a>
Kamailio World Conference - May 6-8, 2019 -- <a class="m_1528559514255750559gmail-m_-8614156434403695944moz-txt-link-abbreviated" href="http://www.kamailioworld.com" target="_blank" rel="noreferrer">www.kamailioworld.com</a></pre>
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</blockquote>
</div>
<br>
<fieldset class="m_1528559514255750559mimeAttachmentHeader"></fieldset>
<pre class="m_1528559514255750559moz-quote-pre">_______________________________________________
Kamailio (SER) - Users Mailing List
<a class="m_1528559514255750559moz-txt-link-abbreviated" href="mailto:sr-users@lists.kamailio.org" target="_blank" rel="noreferrer">sr-users@lists.kamailio.org</a>
<a class="m_1528559514255750559moz-txt-link-freetext" href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" target="_blank" rel="noreferrer">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a>
</pre>
</blockquote>
<pre class="m_1528559514255750559moz-signature" cols="72">--
Daniel-Constantin Mierla -- <a class="m_1528559514255750559moz-txt-link-abbreviated" href="http://www.asipto.com" target="_blank" rel="noreferrer">www.asipto.com</a>
<a class="m_1528559514255750559moz-txt-link-abbreviated" href="http://www.twitter.com/miconda" target="_blank" rel="noreferrer">www.twitter.com/miconda</a> -- <a class="m_1528559514255750559moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda" target="_blank" rel="noreferrer">www.linkedin.com/in/miconda</a>
Kamailio World Conference - May 6-8, 2019 -- <a class="m_1528559514255750559moz-txt-link-abbreviated" href="http://www.kamailioworld.com" target="_blank" rel="noreferrer">www.kamailioworld.com</a></pre>
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</blockquote></div></div></div>