Hi,
Thank you for the response; I am using set_contact_alias().
-- Alex
> On May 16, 2023, at 2:01 AM, Daniel-Constantin Mierla <mico...@gmail.com>
> wrote:
>
> Hello,
>
> can you check that you are using set_contact_alias() instead of
> add_contact_alias()? The former should make the new contact with alias
> visible to a few modules and, iirc, it should be for dialog module.
>
> Cheers,
> Daniel
>
> On 16.05.23 04:36, Alex Balashov wrote:
>> Hi,
>>
>> When I modify INVITEs with set_contact_alias() / add_contact_alias(), this
>> is not preserved in dialog data, and therefore not honoured in BYEs locally
>> generated due to dialog timeout.
>>
>> For example, if the initial INVITE contained:
>>
>> Contact: sip:line1@192.168.1.100
>>
>> and, after transit, became:
>>
>> Contact: <sip:line1@192.168.1.100>;alias=1.1.1.1~25844~1
>>
>> There is no ;alias value stored in the caller dialog data, just the original
>> URI + parameters.
>>
>> A related problem:
>>
>> I tried to work around this by storing an alias in dialog user variables,
>> e.g.
>>
>> $dlg_var(alternate_ct) = $_s($si~$sp~$prid)
>>
>> and in fact, I am able to recover this value later:
>>
>> event_route[tm:local-request] {
>> if($dlg_var(alternate_ct) ne $null) {
>> $ru = $ru + ";alias=" + $dlg_var(alternate_ct);
>> handle_ruri_alias();
>> }
>> }
>>
>> And in fact, if I print the value of $du after calling handle_ruri_alias(),
>> I can see that it is modified. However, this seems to have no effect on
>> where the request actually goes at the network and transport level. I assume
>> this is because the event_route does not actually allow one to overwrite
>> elements of the spoofed request, and that its essential attributes have been
>> pre-populated elsewhere.
>>
>> Nevertheless, the effect is that these BYEs do not reach NAT'd endpoints.
>> Any suggestions are appreciated!
>>
>> Thanks in advance,
>>
>> -- Alex
>>
>> --
>> Alex Balashov
>> Principal Consultant
>> Evariste Systems LLC
>> Web: https://evaristesys.com
>> Tel: +1-706-510-6800
>>
>> __________________________________________________________
>> Kamailio - Users Mailing List - Non Commercial Discussions
>> To unsubscribe send an email to sr-users-le...@lists.kamailio.org
>> Important: keep the mailing list in the recipients, do not reply only to the
>> sender!
>> Edit mailing list options or unsubscribe:
>
> --
> Daniel-Constantin Mierla -- www.asipto.com
> www.twitter.com/miconda -- www.linkedin.com/in/miconda
> Kamailio World Conference - June 5-7, 2023 - www.kamailioworld.com
>
--
Alex Balashov
Principal Consultant
Evariste Systems LLC
Web: https://evaristesys.com
Tel: +1-706-510-6800
__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
To unsubscribe send an email to sr-users-le...@lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the
sender!
Edit mailing list options or unsubscribe:
