At my confiig I have route like this

onreply_route[REPLY_FROM_WS] {


if(status=~"[12][0-9][0-9]") {
xlog("L_INFO", "Manage_Reply from webrtc client {$si:$sp} for method {$rm}: $rs");
rtpengine_manage("force trust-address replace-origin replace-session-connection DTLS=passive ICE=remove RTP/AVP");
route(NATMANAGE);
}
 }

This route successfully handling replies 180 183 and 200 and then (after natmanage route) resend to mediaserver.

When callee client reject call  it send 480 ot 486 message that not resended by kamailio nowhere.

First of all I thought that 480 and 486 replies are failure replies but at log I see its at onreply route.

So Ok . I added this to onreply_route
 if (status=~"48[06]"){
xlog("L_INFO", "Manage_Reply from webrtc client {$si:$sp} for method {$rm}: $rs");
rtpengine_manage("force trust-address replace-origin replace-session-connection DTLS=passive ICE=remove RTP/AVP");
route(NATMANAGE);
}

But message just going through natmanage route and goes nowhere

My NATMANAGE route is

       xlog("L_INFO","NATMANAGE reply  {$rm}");
if (is_reply()) {
if(isbflagset(FLB_NATB)) {
add_contact_alias();
}
xlog("L_INFO","reply  {$rm}");

}

I see at my log only first NATMANAGE xlog... no more...

thnks for answer