> On 11 May 2023, at 12:31, Henning Westerholt <hw@gilawa.com> wrote:
>
> Hello,
>
> why you actually need to add the Contact header to the ACK? According to the RFC 3261 is should be an optional header to that message.
>
For a failure message there can not be any Contact header. Never. There’s no one to contact!
/O
> Cheers,
>
> Henning
>
> -----Original Message-----
> From: James Browne <james@frideo.com>
> Sent: Mittwoch, 10. Mai 2023 14:08
> To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org>
> Subject: [SR-Users] Re: where add contact header to ack for fail messages
>
> I made simple tests and it seems that this is a kamailio-TM-internal message being sent, not being processed by the cfg file.
>
> If this is simple enough and deterministic, you may consider using the corex module to edit the message as it's being sent "on the wire". I can't think of any other solution.
> https://kamailio.org/docs/modules/5.6.x/modules/corex.html#corex.evr.network_msg
> You may be able to write some code that manipulates the message to manually add the Contact header. Maybe even the append_hf function may work here, but it seems unlikely.
>
> James
>
> On Mon, 8 May 2023 at 12:28, mohsen khashei <mkhashei@gmail.com> wrote:
>>
>> thanks for the reply I tried it and it didn't work. also I tried onsend_route with no luck.
>>
>> On Sun, May 7, 2023 at 7:00 PM Yuriy G <ovoshlook@gmail.com> wrote:
>>>
>>> Try here
>>> https://www.kamailio.org/docs/modules/5.6.x/modules/tm.html#tm.e.loca
>>> l-request
>>>
>>> However I would doubt first do I do something right by adding contact to ACK message wichbasicaly confirmation of the final transaction and contact here is meaningless.
>>>
>>> On Sun, 7 May 2023, 16:48 mohsen khashei, <mkhashei@gmail.com> wrote:
>>>>
>>>> Hi I want to know where kamailio sends ack messages to faiurel messages (status >=400) so that I I add Contact header to the ack.
>>>> I tried WITHINDLG with no luck.
>>>> thanks
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