[OpenSIPS-Users] Subscribe/Notify

[Bogdan-Andrei Iancu]

Hi Kevin,

You must record_route() during the SUBSCRIBE requests, so the following 
NOTIFY requests will also go via your proxy, so thru the FW.

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 11/21/22 10:20 PM, Kevin Kennedy wrote:
> I am testing opensips 3.2 as a loadbalancer for a group of SBCs.  I am 
> using Mid-Registrar and Dispatcher to load balance to the SBCs.  I am 
> able to get Registrations and Calls working, but the issue I am having 
> is with the Subscribe messages not receiving the NOTIFY response.  
> Since it is set as a stateful proxy the out of dialog messages are 
> coming directly to the users public IP.  So Notify is being dropped at 
> the firewall as its not coming from the same IP address that the phone 
> is registered to.
>
> Is there a mechanism to remedy this other than full B2BUA?
> If B2BUA is the only path, what is the best way to set this up?
>
> Thank you.
>
>
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