Hello, there are couple of modules that change the R-URI and automatically call append_branch() if the execution takes place in failure_route, other modules don't. Perhaps we should get to a coherent behavior, if not for existing code, then for the future. Probably the most flexible, better in my opinion, is to let script writer to call append_branch() in config -- once done, it is no way now to revert. A new branch should be automatically done only if it is a specific operation, e.g., location lookup with more than one record. What do you think? Cheers, Daniel PS. this blending of the ser-kamailio sources gives me ideas to do some cleanup as I review the code ... especially after midnight ... -- Daniel-Constantin Mierla http://www.asipto.com