Didn't I show in the examples above that contact has nothing to do with it?
Aniway again, no Contact with Record-Route in ACK, have error in topos: [call4.log](https://github.com/kamailio/kamailio/files/7177215/call4.log) [dump4.txt](https://github.com/kamailio/kamailio/files/7177216/dump4.txt)
no Contact, no Record-Route, no error: [call5.log](https://github.com/kamailio/kamailio/files/7177218/call5.log) [dump5.txt](https://github.com/kamailio/kamailio/files/7177219/dump5.txt)
and the set that xavu
I do belive if i set xavu in in-Dialog messages topos will be work correctly, but as sayd @henningw: