Hi I want to use kamailio with sems for early media generation. For that purpose I write a service route that when an invite received by kamailio  it triggers that route in that route I fork the call to the sems and continue to the calle when I receive 200 ok cancel all other branches. But no media between 2 call ends please help me. I know something is wrong in my logic

route[SERVICES] {

rewritehostport("127.0.0.1:5080");

             append_branch();

             t_on_branch("1");

             t_on_reply("catch_200");

}

branch_route[1] {

            remove_hf("P-App-Name");

            append_hf("P-App-Name: early_announce\r\n");

            append_hf("P-App-Param: B2B=no\r\n");

    }

    onreply_route[catch_200] {

                 if(status=="200") {

                         if (t_cancel_branches("others")) {

                         xlog("cancelled all branches\n");

                         }

                }

    }

Thanks.