Well, no, there are lots of things you need transaction state for.
Failover, for example. 

If you tried gateway #1 and it timed out, so you want to try gateway #2,
you have no way of doing that unless you have some way of knowing and
interrogating the facts that:

1) gateway #1 was tried 
2) a certain amount of time went by
3) nothing happened;
4) you're due to try gateway #2 next.

That all requires state.

On Wed, Apr 11, 2018 at 04:38:19PM +0000, Cody Herzog wrote:

> Hello.
> 
> I have read that the primary use of 't_newtran()' is to handle SIP 
> retransmissions.
> 
> Given that, is there any reason to use it when operating over TCP/TLS?
> 
> I recently changed a route to operate asynchronously through 
> 'async_task_route()'. When I did, calls to 't_newtran()' started failing.
> 
> I'm hoping that I can safely remove all the calls to 't_newtran()' and the 
> matching calls to 't_release()' on this async route, because I am using TLS 
> as the transport.
> 
> Does that sound correct?
> 
> Thanks.

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Alex Balashov | Principal | Evariste Systems LLC

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