Dear all i think i have noticed a wrong behaviour with xflags. When they are set in a failure_route and a t_relay is done after that to a destination, its state is lost in the next on_reply route. This doesn't happen with regular transaction flags, and it doesn't happen with xflags either when xflag is set inside an onreply_route. We have seen it on versions 5.3 and 5.4 Could you please confirm this? thanks a lot regards david escartin -- [image: Logo] David Escartín Almudévar VoIP/Switch Engineer descartin(a)sonoc.io *SONOC* C/ Josefa Amar y Borbón, 10, 4ª · 50001 Zaragoza, España Tlf: +34 917019888 · www.sonoc.io