[OpenSIPS-Users] - Server Header, on 180 Ringing

[Bogdan-Andrei Iancu]

Hi Nitesh,

Happy Tuesday !

The Server setting in OpenSIPS impacts only the SIP messages generated 
by OpenSIPS itself (while acting as Server), it does not impact the SIP 
messages that are "proxy"ed by OpenSIPS - like the 180 reply you mentioned.

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
OpenSIPS Bootcamp 5-16 Dec 2022, online
   https://www.opensips.org/training/OpenSIPS_eBootcamp_2022/

On 11/4/22 5:02 PM, Nitesh Divecha wrote:
> Hello All,
>
> Happy Friday!
>
> So while checking something I noticed that my "Server Header" is 
> getting overwritten on 180 Ringing.
>
> I have the default server header defined on 
> top, server_header="Server: Engineering Test". It shows fine on "100 
> Giving it a try" but it gets overwritten on "180 Ringing".
>
> Example, PSTN --> OpenSIPS --> ATA.
> - When the call comes in via the PSTN network, OpenSIPS replies back 
> with "100 Giving it a try" to PSTN and sends "INVITE (SDP)" to 
> registered ATA. On the reply back to PSTN it shows "Server: 
>  Engineering Test".
>
> - ATA replies back with "100 Trying" and "180 Ringing" to OpenSIPS. 
> The reply back from ATA on "180 Ringing" shows Server: 
> OBIHAI/OBi302-3.2.5.8732 which over writes the default server_header=.
>
> - When OpenSIPS replies back to PSTN with "180 Ringing", it shows 
> Server: OBIHAI/OBi302-3.2.5.8732.
>
> Any insights on how I can prevent this from happening? I want to keep 
> the default server header going out on the PSTN network.
>
> Thank you in advance...
>
> Cheers,
> Nitesh
>
>
>
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