title: Record-route header with lr=on when sent by Kamailio as Outbound proxy
body: <p>I am using Xlite at one end for sending INVITE.
  If i use Kamailio 4.0.1 as outbound proxy,in the call flow it adds lr=on as mentioned below  WIRESHARK trace  :
  Record-Route: 
  Via: SIP/2.0/UDP 10.44.104.149;branch=z9hG4bK0ecf.1bd4c266.0
  Via: SIP/2.0/UDP 10.44.104.160:5998;branch=z9hG4bK-d8754z-829f7d43eed09018-1---d8754z-;rport=5998</p>
  
  <p>and after that the pbx sends 503 response for the INVITE.</p>
  
  <p>but as per RFC 3665 for the call flow ,the lr should be blank as :
  Record-Route: </p>
  
  <p>is there any configuration change needed in the Kamailio  to meet REcord Route as per RFC 3665 ie lr without On value.</p>