[sr-dev] How to change the reply msg in the onreply_route

Hi I have following scenario: u1---> p1 --> u2 u1 calling u2, u2 reply with 200 OK, The p1 need to check something, and decide to send ACK/Bye to u2, and 488 to u1: onreply_route[1] { if (my_function_check("")) { release_call_onreply(""); } } The question is : How to do implement release_call_onreply correctly? The pseudo codes is like: t=tmb.t_gett(); send_request(method_ACK); send_request(method_BYE); reason_code = 488 tmb.t_reply(t->uas.request,reason_code,reason_text); (Not sure if t_reply can be called here or not.) The ACK/Bye is sent to U2, 488 is sent to U1, But the issue is it seems the original 200 OK is forwarded to U1 as well. How to avoid it? Or should the Data lumps function be used here to modify the 200 reply msg instead of using t_reply here? Kind Regards Min Wang