Can you get the ngrep on the server from the initial invite to the ack. It seems that record route is not properly mirrored, so one client might mess the route path.

Cheers,
Daniel

On 6/23/13 8:58 PM, Jayesh Nambiar wrote:
I did do debug=3 and saw the logs but couldn't figure out much. Here is the log for the appropriate ACK received on websocket port. I've highlighted a few lines I felt might be problematic:

DEBUG: <core> [tcp_read.c:1146]: ws_process_msg(): WebSocket Message: [[>>>#012<81>þ#003ø´¶#037<8a>õõTªÇßo°<85><84>,¾ô<84>.¼<9a><87>-²<9a><8e>)¤<8c><8c>*º<82><83>$þÆ×qùÄÙmþ<89>Ã{ú<94>åVÚ<9b><84>1º¹¼IãÕ<8c>?Ùýæ0¸<9a><86>0Ýç<96>{ì<83>Ü~æ<86><85>sù<84>Ò1ãÚÀ~æÝÒ$èÆ×qéÜ<8b>e³Üñ+èÿ<8e>pÛÓÔjçñ<86>iÛ<8c>äKûöä+¾ú<8d>múÛÄk<87>¾ðmåÙ<8c>?¨þ×fïÇÞ=¶Çßo°<85><86>/º<84><86>.º<84><87>_íÜ×qþÝ<98>|åÙ<88>$þÕÑ"½ñýVÙÿ÷~áòñ-Ûî<84>UüÄòP<87>¾âp°<94><8a>lãÄ<8c>.¸<87><82>_íÜ×qþÝ<98>|åÙ<88>$þÕÑ"²ö<85>Y²<8c><81>T½ÿÀzç¹¼\åÚÂ~éÀ<8c>?¨þ×fïÇÞ=¶Çßo°<85><86>/º<84><86>.º<84><87>_� �Ò<81>uëØ<84>,æÇ<86>{¤ÝØiëØß{±ÆÂ|ýÑÔ2èÆÓ~áÑÄ"äÛ<8d>|æÝÕt¸××sæ<89>Øp±ÀÄ~äÇÆpøÀ<8b>hù<8a><8d>4í<9a>Ùrë<9a>Åvú<99>ßr±<9f>Åvú<9a>ß|ï<8f>Ú~äÓÃ~íÑ<8b>=ïÚ<9a>yø<96>»#025ÉÕÚs§ýò%ª<86><87>/¾ÕÔ'³<99><80>&¿<82><9b>&è×<87>2¿<86><8e>z§Ö<87>'èÐ<8f>{¾Ö<85>.é¹¼\ÙÑÇ%ª<80><8e>'ªõõT<87>¾õpäÀÓqþ<99>úzäÓÂw°<94><86>#022<80>æÙjþÑ<8c>?¶Çßo°<86><87>)¤<85><84>'¤<8c><80>1³<8e><83>/¼<84><8d>sø<8f>ÅvúÙÚ*§ÛÃkèÛÃqî<8f>ÂmëÚÅoåÆÂ"ÿÐÆ!<87>¾û~ò<99>ðpøÃ×mîÇ<8c>?½<84>»#025ÚÆÙgó<99>÷jþÜÙmãÎ×kãÛØ%ªðßxïÇÂ?ÿÇÓmäÕÛz·<96> <87>/º<84><86>/»<84><86>.¨<98>ÄzëØÛ"¨ÓÞ~äÀß1éÛÛ=¦ÚÙqéÑ<8b>=ß×Ò[ìØþWÛØúYÿÝþHÇ<84>ØI¡í<86>'þàÐFÆÓÁV¨<98>Ãmã<89><94>lãÄ<8c>.¸<87><82>_¸<85><80>1»<86><8e>1²<82><98>'°<81><86>)¿<8f>ÂmëÚÅoåÆÂ"ÿÐÆ=¦ÆÓlúÛØlï<89><94>{é<82><85>~º<83><81>y¾<82><8e>{¿<81>×&¾<8d>Ð)ëÕ<87>*ì<80>×z¼<82><83>=¦ÕÚxåÆßkâÙ<8b>RÎ<81>»#025ØÛÃkï<8e><96>#ùÝÆ%¸<85><80>1»<86><8e>1²<82><98>&°<8c><86>'º<8f>ÂmëÚÅoåÆÂ"ýÇ<8d>m¸<89>Ùq±ØÄ"åÚ<8d>yþÕÑ"½ñýVÙÿ÷~áòñ-Ûî<84>UüÄòP±Ú×k·ÍÓl´¹¼MåÁÂz°<94><8a>lãÄ<8c>-»<82><98>.¸<8c ><98>'¼<9a><8f>$ø<86><8b>pä<8f>Úm·ÛØ$ìÀ×x·<83>óTÃçý^ëßðX¸åì-ÀÂÆ[Å<8f>Ø~þ<89>Ïzù<8a>»#025ßÇÓm§õÑzäÀ<8c>?Ãù<9b>|æÝÓqþ<9b>ùRË<85><98>/ªÇßoÇø<83>2ü<85><98>-º<85><85>1º<87><98>-½¹¼PøÓ×qãÎ×kãÛØ%ªðÙjèÕØxå<94>âzæÑÕpç¹¼#022<80><<<]]
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: websocket [ws_frame.c:346]: decode_and_validate_ws_frame(): decoding WebSocket frame
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: websocket [ws_frame.c:396]: decode_and_validate_ws_frame(): supported non-control frame: 0x1
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: websocket [ws_frame.c:500]: decode_and_validate_ws_frame(): Rx (decoded): ACK sip:1234@126.128.68.8:5065;transport=udp SIP/2.0#015#012Via: SIP/2.0/WS df7jal23ls0d.invalid;branch=z9hG4bK8oQgbumE0vQ8RTqBR44N;rport#015#012From: "Jayesh"<sip:1000001001@ghanti.com>;tag=7EKISKAakFG2QZ2JvpDO#015#012To: <sip:1234@ghanti.com>;tag=8B3F887K7Kvem#015#012Contact: "Jayesh"<sip:1000001001@df7jal23ls0d.invalid;rtcweb-breaker=no;click2call=no;transport=ws>;+g.oma.sip-im;+sip.ice;language="en,fr"#015#012Call-ID: 2104ab89-6956-9bc1-528e-b18bd9d4b31c#015#012CSeq: 488 ACK#015#012Content-Length: 0#015#012Route: <sip:126.128.68.9:5060;lr;sipml5-outbound;transport=udp>#015#012Max-Forwards: 70#015#012Proxy-Authorization: Digest username="1000001001",realm="ghanti.com",nonce="UcdDflHHQlLFuiHWM0nV+Y08tTfYLgwI",uri="sip:1234@126.128.68.8:5065;transport=udp",response="dc63a077f468d55a949f6aa15f4ae665",algorithm=MD5#015#012Route: <sip:126.128.68.9:8080;transport=ws;r2=on;lr=on;ftag=7EKISKAakFG2QZ2JvpDO;nat=yes>#015#012Route: <sip:126.128.68.9;r2=on;lr=on;ftag=7EKISKAakFG2QZ2JvpDO;nat=yes>#015#012User-Agent: IM-client/OMA1.0 sipML5-v1.2013.03.27#015#012Organization: Doubango Telecom#015#012#015#012
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: websocket [ws_frame.c:580]: ws_frame_receive(): Rx SIP message:#012ACK sip:1234@126.128.68.8:5065;transport=udp SIP/2.0#015#012Via: SIP/2.0/WS df7jal23ls0d.invalid;branch=z9hG4bK8oQgbumE0vQ8RTqBR44N;rport#015#012From: "Jayesh"<sip:1000001001@ghanti.com>;tag=7EKISKAakFG2QZ2JvpDO#015#012To: <sip:1234@ghanti.com>;tag=8B3F887K7Kvem#015#012Contact: "Jayesh"<sip:1000001001@df7jal23ls0d.invalid;rtcweb-breaker=no;click2call=no;transport=ws>;+g.oma.sip-im;+sip.ice;language="en,fr"#015#012Call-ID: 2104ab89-6956-9bc1-528e-b18bd9d4b31c#015#012CSeq: 488 ACK#015#012Content-Length: 0#015#012Route: <sip:126.128.68.9≈:5060;lr;sipml5-outbound;transport=udp>#015#012Max-Forwards: 70#015#012Proxy-Authorization: Digest username="1000001001",realm="ghanti.com",nonce="UcdDflHHQlLFuiHWM0nV+Y08tTfYLgwI",uri="sip:1234@126.128.68.8:5065;transport=udp",response="dc63a077f468d55a949f6aa15f4ae665",algorithm=MD5#015#012Route: <sip:126.128.68.9:8080;transport=ws;r2=on;lr=on;ftag=7EKISKAakFG2QZ2JvpDO;nat=yes>#015#012Route: <sip:126.128.68.9;r2=on;lr=on;ftag=7EKISKAakFG2QZ2JvpDO;nat=yes>#015#012User-Agent: IM-client/OMA1.0 sipML5-v1.2013.03.27#015#012Organization: Doubango Telecom#015#012#015#012
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/msg_parser.c:623]: parse_msg(): SIP Request:
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/msg_parser.c:625]: parse_msg():  method:  <ACK>
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/msg_parser.c:627]: parse_msg():  uri:     <sip:1234@126.128.68.8:5065;transport=udp>
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/msg_parser.c:629]: parse_msg():  version: <SIP/2.0>
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/parse_via.c:1284]: parse_via_param(): Found param type 232, <branch> = <z9hG4bK8oQgbumE0vQ8RTqBR44N>; state=6
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/parse_via.c:1284]: parse_via_param(): Found param type 235, <rport> = <n/a>; state=17
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/parse_via.c:2672]: parse_via(): end of header reached, state=5
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/msg_parser.c:513]: parse_headers(): parse_headers: Via found, flags=2
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/msg_parser.c:515]: parse_headers(): parse_headers: this is the first via
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [receive.c:149]: receive_msg(): After parse_msg...
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [receive.c:190]: receive_msg(): preparing to run routing scripts...
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: sl [sl_funcs.c:396]: sl_filter_ACK(): DEBUG : sl_filter_ACK: to late to be a local ACK!
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/parse_to.c:176]: parse_to_param(): DEBUG: add_param: tag=8B3F887K7Kvem
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/parse_to.c:799]: parse_to(): end of header reached, state=29
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/msg_parser.c:190]: get_hdr_field(): DEBUG: get_hdr_field: <To> [41]; uri=[sip:1234@ghanti.com]
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/msg_parser.c:192]: get_hdr_field(): DEBUG: to body [<sip:1234@ghanti.com>]
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/msg_parser.c:170]: get_hdr_field(): get_hdr_field: cseq <CSeq>: <488> <ACK>
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/msg_parser.c:204]: get_hdr_field(): DEBUG: get_hdr_body : content_length=0
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: maxfwd [mf_funcs.c:85]: is_maxfwd_present(): value = 70
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: maxfwd [maxfwd.c:161]: process_maxfwd_header(): value 70 decreased to 16
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/msg_parser.c:106]: get_hdr_field(): found end of header
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/parse_to.c:176]: parse_to_param(): DEBUG: add_param: tag=7EKISKAakFG2QZ2JvpDO
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [parser/parse_to.c:799]: parse_to(): end of header reached, state=29
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: sanity [mod_sanity.c:255]: w_sanity_check(): sanity checks result: 1
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: INFO: <script>: Request Method is ACK
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: nathelper [nathelper.c:888]: add_contact_alias_0_f(): contact uri host is not an ip address
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: nathelper [nathelper.c:965]: add_contact_alias_0_f(): adding param <;alias=203.153.53.166~59841~5>
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: INFO: <script>: Inside NATDETECT
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: nathelper [nathelper.c:888]: add_contact_alias_0_f(): contact uri host is not an ip address
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: nathelper [nathelper.c:965]: add_contact_alias_0_f(): adding param <;alias=203.153.53.166~59841~5>
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: siputils [checks.c:106]: has_totag(): totag found
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: rr [loose.c:89]: is_preloaded(): is_preloaded: No
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [socket_info.c:589]: grep_sock_info(): grep_sock_info - checking if host==us: 12==12 && [126.128.68.8] == [126.128.68.9]
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [socket_info.c:593]: grep_sock_info(): grep_sock_info - checking if port 5060 (advertise 0) matches port 5065
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [socket_info.c:589]: grep_sock_info(): grep_sock_info - checking if host==us: 12==12 && [126.128.68.8] == [126.128.68.9]
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [socket_info.c:593]: grep_sock_info(): grep_sock_info - checking if port 5060 (advertise 0) matches port 5065
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [socket_info.c:589]: grep_sock_info(): grep_sock_info - checking if host==us: 12==12 && [126.128.68.8] == [126.128.68.9]
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [socket_info.c:593]: grep_sock_info(): grep_sock_info - checking if port 8080 (advertise 0) matches port 5065
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [forward.c:462]: check_self(): check_self: host != me
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [socket_info.c:589]: grep_sock_info(): grep_sock_info - checking if host==us: 12==12 && [126.128.68.9] == [126.128.68.9]
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [socket_info.c:593]: grep_sock_info(): grep_sock_info - checking if port 5060 (advertise 0) matches port 5060
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: rr [loose.c:778]: after_loose(): Topmost route URI: 'sip:126.128.68.9:5060;lr;sipml5-outbound;transport=udp' is me
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: rr [loose.c:862]: after_loose(): URI to be processed: 'sip:126.128.68.9:8080;transport=ws;r2=on;lr=on;ftag=7EKISKAakFG2QZ2JvpDO;nat=yes'
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: rr [loose.c:871]: after_loose(): Next URI is a loose router
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: siputils [checks.c:106]: has_totag(): totag found
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: rr [loose.c:974]: check_route_param(): params are <;lr;sipml5-outbound;transport=udp>
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: INFO: <script>: Inside Natmanage ACK
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: siputils [checks.c:106]: has_totag(): totag found
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: tm [t_lookup.c:1395]: t_newtran(): DEBUG: t_newtran: msg id=8 , global msg id=7 , T on entrance=(nil)
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: tm [t_lookup.c:534]: t_lookup_request(): t_lookup_request: start searching: hash=60000, isACK=1
un 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: tm [t_lookup.c:492]: matching_3261(): DEBUG: RFC3261 transaction matching failed
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: tm [t_lookup.c:716]: t_lookup_request(): DEBUG: t_lookup_request: no transaction found
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: tm [t_funcs.c:311]: t_relay_to(): SER: forwarding ACK  statelessly
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: WARNING: <core> [msg_translator.c:2499]: via_builder(): TCP/TLS connection (id: 0) for WebSocket could not be found
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: ERROR: <core> [msg_translator.c:1725]: build_req_buf_from_sip_req(): could not create Via header
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: ERROR: <core> [forward.c:607]: forward_request(): ERROR: forward_request: building failed
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: ERROR: sl [sl_funcs.c:371]: sl_reply_error(): ERROR: sl_reply_error used: I'm terribly sorry, server error occurred (1/SL)
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [usr_avp.c:644]: destroy_avp_list(): DEBUG:destroy_avp_list: destroying list (nil)
Jun 23 18:45:46  /usr/local/ghanti-ko/sbin/kamailio[22879]: last message repeated 5 times
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [xavp.c:447]: xavp_destroy_list(): destroying xavp list (nil)
Jun 23 18:45:46 v9 /usr/local/ghanti-ko/sbin/kamailio[22879]: DEBUG: <core> [receive.c:293]: receive_msg(): receive_msg: cleaning up

Thanks for all the help.

--- Jayesh


On Sun, Jun 23, 2013 at 8:53 PM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:
Are you sure the error messages are printed for this ACK, because it has to be sent via UDP, not via WS, thus the messages seem to be unrelated.

Get the log messages with debug=3 in order to see what is happening.

Cheers,
Daniel


On 6/22/13 9:10 AM, Jayesh Nambiar wrote:
Hi,
Is it possible that this could be a problem in the script. But when I call using a normal SIP Client like X-Lite, it works well. This only happens when the request comes on websocket. Is there something to be handled specially when handling requests like ACK over websocket?
The reference is more or less taken from https://gist.github.com/jesusprubio/4066845

--- Jayesh


On Wed, Jun 19, 2013 at 2:14 PM, Jayesh Nambiar <jayesh1017@gmail.com> wrote:
Hi Daniel,
I checked using the kamcmd command and I see the webrtc connection active. The ACK comes from the webrtc client but somehow kamailio is unable to create a via header and forward the request. The ACK coming from webrtc client is as follows:

Via: SIP/2.0/WS df7jal23ls0d.invalid;branch=z9hG4bKJ0Qsiuh94B2slPLp19qH;rport
From: "Jayesh"<sip:1000001001@ghanti.com>;tag=vsTKsfB1ZR8EkHTPqzyc
To: <sip:1223@ghanti.com>;tag=UQ9veX0vUg7QS
Contact: "Jayesh"<sip:1000001001@df7jal23ls0d.invalid;rtcweb-breaker=no;click2call=no;transport=ws>;+g.oma.sip-im;+sip.ice;language="en,fr"
Call-ID: 2c76d5ee-e9d0-7f22-8be2-76e80b4ab48b
CSeq: 42684 ACK
Content-Length: 0
Max-Forwards: 70
Proxy-Authorization: Digest username="1000001001",realm="ghanti.com",nonce="UcFsQ1HBaxc84k4N1J00fpVDj9G57x5p",uri="sip:1223@126.128.68.8:5065;transport=udp",response="5b18a2182c335315875224f2244fb48b",algorithm=MD5
User-Agent: IM-client/OMA1.0 sipML5-v1.2013.03.27
Organization: Doubango Telecom

Where 126.128.68.9:5060 is the Kamailio; 126.128.68.8:5065 is a freeswitch playing music and the request is received on 126.128.68.9:8080 which is kamailio acting as a websocket server.
Also the connection between Kamailio and Freeswitch is UDP. I am not able to use the websocket module just because of this small problem caused in signaling. Any help is really appreciated. Could it be related to the nathelper module?

Thanks,

--- Jayesh


On Tue, Jun 18, 2013 at 2:17 PM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:
Hello,


On 6/14/13 4:52 PM, Jayesh Nambiar wrote:
Hello All,
I have a setup which is SIPML5 -> Kamailio(Websocket) -> Freeswitch. All I am trying to do is initiate a call from SIPML5 and Play a Music file from freeswitch. This works, but the call hangs up after 30 seconds due to ACK timeout from from the SIPML5.

What I can see is the SIPML5 from Chrome does send an ACK on websocket, but I see the following error in kamailio syslog:

via_builder(): TCP/TLS connection (id: 0) for WebSocket could not be found
ERROR: <core> [msg_translator.c:1725]: build_req_buf_from_sip_req(): could not create Via header
ERROR: <core> [forward.c:607]: forward_request(): ERROR: forward_request: building failed
ERROR: sl [sl_funcs.c:371]: sl_reply_error(): ERROR: sl_reply_error used: I'm terribly sorry, server error occurred (1/SL)

Can someone help me understand what I am missing here and why kamailio is not able to create a VIA header to forward this request towards freeswitch. I have built a simple config file by following https://gist.github.com/jesusprubio/4066845 as reference.

Any help in understanding this is really appreciated.
looks like the web rtc connection was down (closed by one side or interrupted by the network). You can check with kamcmd the list of active connections.

Cheers,
Daniel

-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Training, San Francisco, USA - June 24-27, 2013
  * http://asipto.com/u/katu *

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-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda



-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda