Thanks for the quick reply, Alex.

I will try to provide more context information.

The route in question is related to presence.

Our usage of t_newtran() is very similar to the following presence examples:

https://github.com/kamailio/kamailio/blob/master/test/unit/presence.cfg

https://lists.kamailio.org/pipermail/sr-users/2016-April/092544.html

https://www.kamailio.org/dokuwiki/doku.php/presence:configuration-file (see route[2])

I believe our config was probably based off one of those.

In that context, with reliable transport, is 't_newtran()' useful?

Thanks.