<div dir="auto"><div>Hi Bogdan,</div><div dir="auto"><br></div><div dir="auto">I've checked the documentation, yes, now I see:</div><div dir="auto"><br></div><div dir="auto">"Triggered by: receiving or __generation__ (internal) of a negative reply... "</div><strong style="color:rgb(102,102,102);font-family:"trebuchet ms",sans-serif,verdana,arial;font-size:13.008px;background-color:rgb(255,255,255)"><br></strong><div dir="auto">I used it only for processing negative replies, that's why didn't know about generating internal negative replies.</div><div dir="auto"><br></div><div dir="auto">Thank you.</div><div dir="auto"><br></div><div><br></div><div data-smartmail="gmail_signature"><div dir="ltr"><div style="color:rgb(34,34,34)">best regards, Alexey</div><div style="color:rgb(34,34,34)"><a href="https://alexeyka.zantsev.com/" target="_blank">https://alexeyka.zantsev.com/</a></div></div></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">пт, 23 янв. 2026 г., 11:54 Bogdan-Andrei Iancu <<a href="mailto:bogdan@opensips.org">bogdan@opensips.org</a>>:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi<br>
<br>
If you know about failure_route, just arm it for the REGISTER and you <br>
will get the 408 Timeout there.<br>
<br>
Regards,<br>
<br>
Bogdan-Andrei Iancu<br>
<br>
OpenSIPS Founder and Developer<br>
   <a href="https://www.opensips-solutions.com" rel="noreferrer noreferrer" target="_blank">https://www.opensips-solutions.com</a><br>
   <a href="https://www.siphub.com" rel="noreferrer noreferrer" target="_blank">https://www.siphub.com</a><br>
<br>
On 21.01.2026 08:31, Alexey wrote:<br>
>> Hi Alexey,<br>
>><br>
>> The AI is almost there, check this:<br>
>><br>
>> <a href="https://www.opensips.org/Documentation/Script-Routes-3-6#failure_route" rel="noreferrer noreferrer" target="_blank">https://www.opensips.org/Documentation/Script-Routes-3-6#failure_route</a><br>
>><br>
>> In failure route you do continue the processing of the request that got<br>
>> the negative reply.<br>
>><br>
>> Regards,<br>
>> Bogdan-Andrei Iancu<br>
>> OpenSIPS Founder and Developer<br>
>>     <a href="https://www.opensips-solutions.com" rel="noreferrer noreferrer" target="_blank">https://www.opensips-solutions.com</a><br>
>>     <a href="https://www.siphub.com" rel="noreferrer noreferrer" target="_blank">https://www.siphub.com</a><br>
><br>
> Hi Bogdan,<br>
> thank you for the reply,<br>
> sure I know about failure_route usage:)<br>
><br>
>> In failure route you do continue the processing of the request that got the negative reply.<br>
> But I'd like to log my outgoing REGISTER requests that haven't<br>
> received any replies at all. Is it possible?<br>
><br>
><br>
>      [my server]                        [VoIP provider's server]<br>
>          REGISTER ------------><br>
>          REGISTER ------------><br>
>          REGISTER ------------><br>
>          REGISTER ------------><br>
><br>
><br>
><br>
><br>
<br>
</blockquote></div>