[SR-Users] kamailio 4.0.0 and websockets

Hi guys, i have yet to finish my readings on the websocket standards but just wanted to fire away with this question. is the behavior of protocol conversions between UDP and TCP the same as if you include websockets? i have this twinkle issue (an old SIP stack) Received from: udp:192.168.122.100:5060 INVITE sip:kelvin@192.168.122.1 SIP/2.0 Record-Route: <sip:192.168.122.100;r2=on;lr=on> Record-Route: <sip:192.168.122.100:8080;transport=ws;r2=on;lr=on> Via: SIP/2.0/UDP 192.168.122.100;branch=z9hG4bKed9e.8b1b2fa61a90a9031e17b393657df31b.0 Via: SIP/2.0/WS z173czhz21tk.invalid;rport=54765;received=192.168.122.1;branch=z9hG4bK3818745 Max-Forwards: 16 To: sip:kelvin@192.168.122.100 From: sip:kelvin2@192.168.122.100;tag=lmf8ofkxwq Call-ID: 69hbgnng64at9p07r2j4 CSeq: 9406 INVITE Contact: <sip:kelvin2@z173czhz21tk.invalid ;alias=192.168.122.1~54765~5;transport=ws;ob> Allow: INVITE, ACK, CANCEL, BYE, OPTIONS, MESSAGE, SUBSCRIBE Content-Type: application/sdp Supported: path, outbound, gruu User-Agent: JsSIP 0.2.1 Content-Length: 2103 v=0 o=- 3148117784 2 IN IP4 127.0.0.1 s=- t=0 0 a=group:BUNDLE audio m=audio 55736 RTP/SAVPF 103 104 111 0 8 106 105 13 126 c=IN IP4 192.168.122.1 a=rtcp:55736 IN IP4 192.168.122.1 a=candidate:2625852906 1 udp 2113937151 <cut off> --- +++ 16-3-2013 10:41:25.584732 INFO SIP ::send_sip_udp Send to: udp:192.168.122.100:5060 SIP/2.0 100 Trying Via: SIP/2.0/UDP 192.168.122.100;branch=z9hG4bKed9e.8b1b2fa61a90a9031e17b393657df31b.0,SIP/2.0/WS z173czhz21tk.invalid;received=192.168.122.1;rport=54765;branch=z9hG4bK3818745 To: <sip:kelvin@192.168.122.100> From: <sip:kelvin2@192.168.122.100>;tag=lmf8ofkxwq Call-ID: 69hbgnng64at9p07r2j4 CSeq: 9406 INVITE Server: Twinkle/1.4.2 Content-Length: 0 --- +++ 16-3-2013 10:41:25.589231 INFO SIP ::send_sip_udp Send to: udp:192.168.122.100:5060 SIP/2.0 488 Not Acceptable Here Via: SIP/2.0/UDP 192.168.122.100;branch=z9hG4bKed9e.8b1b2fa61a90a9031e17b393657df31b.0,SIP/2.0/WS z173czhz21tk.invalid;received=192.168.122.1;rport=54765;branch=z9hG4bK3818745 To: <sip:kelvin@192.168.122.100>;tag=pxtmo From: <sip:kelvin2@192.168.122.100>;tag=lmf8ofkxwq Call-ID: 69hbgnng64at9p07r2j4 CSeq: 9406 INVITE Server: Twinkle/1.4.2 Warning: 302 X340precise "Incompatible transport protocol" Content-Length: 0 Kelvin Chua