Record-route header with lr=on when sent by Kamailio as Outbound proxy

Question

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

and after that the pbx sends 503 response for the INVITE.

but as per RFC 3665 for the call flow ,the lr should be blank as : Record-Route:

is there any configuration change needed in the Kamailio to meet REcord Route as per RFC 3665 ie lr without On value.

Answer 1

You have to set parameter enable_full_lr for rr module to 0, see:

• http://kamailio.org/docs/modules/stable/modules/rr.html#idp21848