But I should add: do you actually need state? All replies can be routed back based on the content of SIP headers alone -- that is to say, statelessly. Most simple load balancers remain stateless for this very reason.

> On 10 Oct 2023, at 13:09, Alex Balashov <abalashov@evaristesys.com> wrote:
>
> There is not.
>
>> On 10 Oct 2023, at 12:50, Michel Pelletier via sr-users <sr-users@lists.kamailio.org> wrote:
>>
>> Hi,
>>
>> I have 2 kamailio instances behind a load balancer.  The problem I have is that the load balancer can only track TCP connections, but not UDP.  So one Kamailio instance might send a request using UDP, while the corresponding UDP reply arrives on the other.  This doesn't play well with the (stateful) TM module.  Is there a way to synchronize the TM module accross Kamailio instances using DMQ?
>>
>> Cheers,
>>
>> Michel Pelletier
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> --
> Alex Balashov
> Principal Consultant
> Evariste Systems LLC
> Web: https://evaristesys.com
> Tel: +1-706-510-6800
>

--
Alex Balashov
Principal Consultant
Evariste Systems LLC
Web: https://evaristesys.com
Tel: +1-706-510-6800

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