[OpenSIPS-Users] Event on DE-REGISTRATION

[Bogdan-Andrei Iancu]

Hi Callum,

Have you tried a quick hack like:


route[send_request]
{
     t_new_request();
}

event_route[E_UL_CONTACT_DELETE]
{
     route(send_request);
}


Best regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
OpenSIPS eBootcamp 23rd May - 3rd June 2022
   https://opensips.org/training/OpenSIPS_eBootcamp_2022/

On 3/3/22 7:12 PM, Callum Guy wrote:
> Hi All,
>
> I have configured my registrar with max_contacts 1, allowing 
> subsequent registrations from that contact to overwrite.
>
> I am looking to intercept the de-registration and send a message to 
> the losing contact. Ideally I would use the existing SIP connection to 
> send it before termination, the client devices are softphones under my 
> control, but I suppose the TCP connection to the previous device may 
> have been severed by the time the event is raised (I can test this 
> when I get there but advice is always welcome).
>
> Event capture is straightforward using E_UL_CONTACT_DELETE however I 
> am wondering if there is any way to generate SIP towards the leaving 
> contact at this point? t_new_request() is not available in event_route 
> and I wanted to reach out to the community for ideas before building 
> an external system to do this (i.e. rest_post to a simple HTTP client).
>
> Is there a neat way to do this within the config script or am I 
> already on the best-fit path here?
>
> Many thanks,
>
> Callum
>
>
>
>
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