<div dir="ltr">Hi Bogdan,<div>Nice to hear from you again, you are always very helpful :)</div><div>Unfortunately, I doubt that Microsoft would listen to my request, they're bending RFCs the way they like it, for example - using FQDN in 'Contact' field and no 'to' tag in this 487 reply. I assume it's quite safe to ignore this behaviour? Thanks!</div><div><br></div><div>Regards,</div><div>Yury.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">ср, 22 мая 2019 г. в 18:37, Bogdan-Andrei Iancu <<a href="mailto:bogdan@opensips.org">bogdan@opensips.org</a>>:<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">
<tt>Hi Yury,<br>
<br>
No need to call any script function - all you need to do is to
point your carrier to read the RFC3261 -> any final SIP reply
MUST have a TO-tag.<br>
<br>
Regards,<br>
</tt>
<pre class="gmail-m_8599548807126737102moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="gmail-m_8599548807126737102moz-txt-link-freetext" href="https://www.opensips-solutions.com" target="_blank">https://www.opensips-solutions.com</a>
OpenSIPS Summit 2019
<a class="gmail-m_8599548807126737102moz-txt-link-freetext" href="https://www.opensips.org/events/Summit-2019Amsterdam/" target="_blank">https://www.opensips.org/events/Summit-2019Amsterdam/</a>
</pre>
<div class="gmail-m_8599548807126737102moz-cite-prefix">On 05/22/2019 11:19 AM, Yury Kirsanov
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi,
<div>My upstream carrier is replying back to CANCEL request with
a 487 Call Cancelled message that doesn't have a 'to' tag in
its headers. So, I'm getting these errors in OpenSIPS logs:<br>
<br>
</div>
<div>ERROR:dialog:push_reply_in_dialog: [487] reply in dlg state
[2]: missing TAG param in TO hdr<br>
</div>
<div><br>
</div>
<div>But dialogs are closing correctly on BYE and I don't see
any dialogs hanging in any state when the call is finished. Is
it something I should be worried about or can I just ignore
this error? Is there any way to avoid it by OpenSIPS script
processing logic? Maybe I need to call some function to fix
this dialog? Thanks!</div>
<div><br>
</div>
<div>Regards,</div>
<div>Yury.</div>
</div>
<br>
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<br>
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</pre>
</blockquote>
<br>
</div>
</blockquote></div>