[OpenSIPS-Users] LOAD_BALANCER module and calls WSS -> UDP

[Răzvan Crainea]

Hello!

Are you calling record_route? Also, make sure you call 
fix_nated_contact() on the 200 OK. Read this blog post for more 
information:
https://blog.opensips.org/2017/02/22/troubleshooting-missing-ack-in-sip/

Best regards,

Răzvan Crainea
OpenSIPS Core Developer / SIPhub CTO
http://www.opensips-solutions.com / https://www.siphub.com

On 1/31/25 3:55 PM, VoIP via Users wrote:
> Good morning everyone,
> 
> I'm trying to implement this type of scenario:
> 
> WSS -> load_balancer -> UDP Gateway (Asterisk)
> 
> Everything works up to the 200 OK received from the gateway and 
> forwarded from OpenSIPs to the WebRTC clients.
> 
> I don't see the ACK sent from the WebRTC client to OpenSIPs to commit 
> the 200OK.
> 
> WebRTC -> UDP and UDP -> WebRTC calls between users work correctly and 
> analyzing the 200 OK of a call between users and a call via 
> load_balancer, the truth is that I do not find differences that justify 
> this type of error.
> 
> I'm writing a tutorial, for now in Spanish, dedicated to the subject but 
> without that piece I can't finish it.
> 
> Thank you in advance for the help
>