[Freeswitch-users] Freeswitch 1.10.7 no BYE to proxy

Hi, we need a proxy (kamailio) in front of freeswitch. In general it works, but ... I get no BYE if the client direct connected to freeswitch hangs up. The INVITE from the proxy contains the correct Record-Route entry: INVITE sip:yyy@xxx.xxx.xx;transport=TCP SIP/2.0 Record-Route: <sip:proxy.address.xxx.xxx;transport=tcp;lr> Via: SIP/2.0/TCP proxy.address.xxx.xxx;branch=z9hG4bK4fcd.b5f0a67d3fa655e0f3b123a8e95ff5b5.0;i=2 Via: SIP/2.0/TCP phone.address.xxx.xxx:53558;received=phone.address.xxx.xxx;rport=53558;branch=z9hG4bKPj30dd14b14974bcb42dc24d2f650f;alias Any ideas?