Daniel-Constantin Mierla writes: yes, i know that. i meant automatic de-arming when t_relay is called. at least in some case i have noticed earlier that if i don't set again failure/branck/reply routes in failure route, they are not necessarily set when t_relay is called in failure route. i would prefer that the default behavior is that failure route is called no matter what error happened. there could be a way to override that if someone wants to have more manual control. for example, lets say that there is a syntax error in r-uri of a branch that is being t_relayed. if failure route is set, it should get called with error "400 Bad Request". i cc this to sr-dev lists, since in my opinion sip-router tm module should allow user friendly, simple handling of t_relay failures. -- juha