[Serusers] Revisted Error: force_rtp_proxy2: can't extract body from the message

Hi all. I've got nathelper and rtpproxy working very well with my firewall. However I do still recieve these messages in my syslog. I am only catching 183 and 2xx errors in my onreply_route so I'm very confused how to prevent these errors. I'm using ser-0.8.99-dev12. Can anyone give me some advise? Cheers, Paul NOTE: The SIP message that caused these errors is at the bottom of this message. 0(27011) ERROR: extract_body: message body has length zero 0(27011) ERROR: force_rtp_proxy2: can't extract body from the message 0(27011) ERROR: on_reply processing failed My onreply_route is here: onreply_route[1] { if (isflagset(2) && status =~ "(183)|2[0-9][0-9]") { fix_nated_contact(); xlog("L_ERR", "%mb"); force_rtp_proxy(); } else if (nat_uac_test("1")) { fix_nated_contact(); }; } 0(27011) SIP/2.0 200 OK Via: SIP/2.0/UDP 67.184.42.101;branch=z9hG4bKe7ac.628388e2.0 Via: SIP/2.0/UDP 192.168.0.83;rport=5060;received=68.184.42.171;branch=z9hG4bKb4bfc6084f306712 From: <sip:9990010001@sip.mycompany.com;user=phone>;tag=0d5452e4bee210e3 To: "Andrew" <sip:9990010002@sip.mycompany.com;user=phone>;tag=b73c75ac247b63db Call-ID: 0d5bc1fb337cd7eb(a)68.184.40.199 CSeq: 26976 BYE User-Agent: Grandstream BT100 1.0.5.11 Contact: <sip:9990010002@68.184.40.199;user=phone> Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE Content-Length: 0 __________________________________ Do you Yahoo!? The all-new My Yahoo! - Get yours free! http://my.yahoo.com