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@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@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@engagely.ai>
> Sent: Monday, August 1, 2022 4:26 PM
> To: Henning Westerholt <hw@gilawa.com>
> Cc: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org>; Amey Naik <amey.naik@engagely.ai>; Devanand Jalla <devanand.jalla@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@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@lists.kamailio.org> On Behalf Of Ankit Jayswal
> Sent: Monday, August 1, 2022 2:37 PM
> To: sr-users@lists.kamailio.org
> Cc: Amey Naik <amey.naik@engagely.ai>; Devanand Jalla <devanand.jalla@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
>
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