4 Aug
2022
4 Aug
'22
9:09 a.m.
it looks like you are handling contact manually but also call
"fix_nated_contact/add_contact_alias" function as well.
You can't call 2 functions for the same header - it breaks the logic of how
kamailio deals with the config at the postprocessing.
There are 2 ways to fix it:
- remove nat helper functions touching contact ( preferred as you
don't need it anymore for the INVITE flow )
- use msg_apply_changes after the first function (which I would not
recommend as it rereads the message again and defacto Kamailio parses the
same message twice )
However as Alex Balashow mentioned - this is a really bad approach - to
rewrite contact on the proxy, and it has to be used for corner cases and
you are not at one of them.
You have to deal with Record-Route/Route headers to be able to manage the
routing.
чт, 4 авг. 2022 г. в 07:30, Ankit Jayswal <ankit.jayswal(a)engagely.ai>ai>:
Yes,
When I use *remove_hf()* and *insert_hf()* it doesn't remove the value of
the Contact header properly.
Below code executed:
remove_hf("Contact");
insert_hf("Contact: <sip:00912269240500@10.52.26.98:5060>\r\n",
"Contact");
I have given the sngrep INVITE request below after applying the above
code. See the highlighted contact header not removing previous value
properly.
[image: contact_header.png]
On Wed, Aug 3, 2022 at 8:30 PM Alex Balashov <abalashov(a)evaristesys.com>
wrote:
How did you conclude that it doesn’t work?
to the
sender!
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On Aug 3, 2022, at 8:06 AM, Ankit Jayswal
<ankit.jayswal(a)engagely.ai>
wrote:
Hello,
Can you suggest directly replacing the value of the Contact header ? As
remove_hf("Contact") does not work for me.
I need just Contact: <sip:009122692405xx@10.52.26.98:5060> instead of,
Contact: <sip:0091692405xx@45.118.162.x:5080;alias=10.52.26.102~5080~1>
On Tue, Aug 2, 2022 at 12:56 PM Alex Balashov <
abalashov(a)evaristesys.com>
wrote:
The suggestion given by Henning was to remove the
existing Contact
header, and replace it with whatever value you like.
> On Aug 2, 2022, at 1:12 AM, Ankit Jayswal <ankit.jayswal(a)engagely.ai>
wrote:
>
> Hello,
> Whenever I try the remove_hf("Contact") function the call leg is
divided into the two parts and the call is not getting set up properly and
not progressing.
> I am just looking for a function that can
modify the Contact header
value of an existing Contact header.
>
> On Mon, Aug 1, 2022 at 8:31 PM Henning Westerholt <hw(a)gilawa.com>
wrote:
> Hello,
>
>
>
> you need to do a “remove_hf(“Contact”)” before.
>
>
>
> Cheers,
>
>
>
> Henning
>
>
>
> --
>
> Henning Westerholt – https://skalatan.de/blog/
>
> Kamailio services – https://gilawa.com
>
>
>
> From: Ankit Jayswal <ankit.jayswal(a)engagely.ai>
> Sent: Monday, August 1, 2022 4:26 PM
> To: Henning Westerholt <hw(a)gilawa.com>
> Cc: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>rg>;
Amey Naik <amey.naik(a)engagely.ai>ai>; Devanand Jalla <
devanand.jalla(a)engagely.ai>
> Subject: Re: [SR-Users] Contact header
modification - Kamailio
>
>
>
> Hello,
> Thanks for your reply, but I am looking to replace the value in the
Contact
header. Which function can help me to do this ?
> I tried,
> assign_hf_value("Contact",
"<sip:00912269240xxx@10.52.26.98:5060>");
>
>
> But that is not working properly, it assigns value but previous value
also
remains in it.
>
>
>
> On Mon, Aug 1, 2022 at 6:11 PM Henning Westerholt <hw(a)gilawa.com>
wrote:
>
> Hello,
>
>
>
> the topos module can do that, among other things. Alternatively there
is also
the topoh module, which do not need any backend storage.
>
>
>
> Cheers,
>
>
>
> Henning
>
>
>
> --
>
> Henning Westerholt – https://skalatan.de/blog/
>
> Kamailio services – https://gilawa.com
>
>
>
> From: sr-users <sr-users-bounces(a)lists.kamailio.org> On Behalf Of
Ankit
Jayswal
> Sent: Monday, August 1, 2022 2:37 PM
> To: sr-users(a)lists.kamailio.org
> Cc: Amey Naik <amey.naik(a)engagely.ai>ai>; Devanand Jalla <
devanand.jalla(a)engagely.ai>
> Subject: [SR-Users] Contact header
modification - Kamailio
>
>
>
> Hello Team,
>
> I am in need to modify the contact header in Kamailio before sending
an
INVITE request to the SIP trunk provider. Basically the IP address I
need to modify in the contact header. Please suggest a better way to do
this. Below is an example.
>
> OLD (Existing):
>
> Contact: <sip:009169240xxx@45.118.162.x
:5080;alias=10.52.26.102~5080~1>
>
>
>
> NEW (Needed):
>
> Contact: <sip:00912269240xxx@10.52.26.98:5060>
>
> I tried various functions from the textops module but no hope.
> I am looking for a function that can replace the contact header's
value.
Please help me with this.
>
>
>
> --
>
> Thanks & Regards,
> Ankit Jayswal | Specialist - Software Development
>
> __________________________________________________________
> Kamailio - Users Mailing List - Non Commercial Discussions
> * sr-users(a)lists.kamailio.org
> Important: keep the mailing list in the recipients, do not reply only
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sender!
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mailing list options or unsubscribe:
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--
Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
__________________________________________________________
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--
Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
__________________________________________________________
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