[kamailio/kamailio] nathelper [nathelper.c:745]: set_contact_alias(): you can't update contact twice, check your config! (Issue #4005)
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### Description
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### Troubleshooting
#### Reproduction
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#### Debugging Data
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``` Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 1 INVITE udfal237dcbsaao5u84v} <script>: INVITE from: sip:voc_104@sip-dev.cleverstack.in (IP:103.133.141.52:54169) to: sip:voc_106@sip-pd.cleverstack.in , ru=sip:voc_106@sip-pd.cleverstack.in Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: ERROR: {1 1 INVITE udfal237dcbsaao5u84v} nathelper [nathelper.c:745]: set_contact_alias(): you can't update contact twice, check your config! Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 1 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: Branch [0] to sip:voc_106@sip-pd.cleverstack.in -- FLAGS: 8192 Checking Conditions Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 1 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: Source Protocol:wss Destination Protocol: UDP Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 1 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: (Branch:[0] EngineID:1) RTP-Engine offer: via-branch=extra trust-address replace-origin replace-session-connection rtcp-mux-demux ICE=remove RTP/AVP Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: ERROR: {1 1 INVITE udfal237dcbsaao5u84v} rtpengine [rtpengine.c:3397]: select_rtpp_node(): rtpengine failed to select new for calllen=20 callid=udfal237dcbsaao5u84v Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: ERROR: {1 1 INVITE udfal237dcbsaao5u84v} rtpengine [rtpengine.c:2737]: rtpp_function_call(): no available proxies Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3050]: INFO: {2 1 INVITE udfal237dcbsaao5u84v} <script>: #015#012FS_REPLY - <null> : INVITE : 407 Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3050]: INFO: {1 1 INVITE udfal237dcbsaao5u84v} <script>: FS_FAULT Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 1 ACK udfal237dcbsaao5u84v} <script>: ACK from: sip:voc_104@sip-dev.cleverstack.in (IP:103.133.141.52:54169) to: sip:voc_106@sip-pd.cleverstack.in , ru=sip:voc_106@sip-pd.cleverstack.in Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 2 INVITE udfal237dcbsaao5u84v} <script>: INVITE from: sip:voc_104@sip-dev.cleverstack.in (IP:103.133.141.52:54169) to: sip:voc_106@sip-pd.cleverstack.in , ru=sip:voc_106@sip-pd.cleverstack.in Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: ERROR: {1 2 INVITE udfal237dcbsaao5u84v} nathelper [nathelper.c:745]: set_contact_alias(): you can't update contact twice, check your config! Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 2 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: Branch [0] to sip:voc_106@sip-pd.cleverstack.in -- FLAGS: 8192 Checking Conditions Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 2 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: Source Protocol:wss Destination Protocol: UDP Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 2 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: (Branch:[0] EngineID:1) RTP-Engine offer: via-branch=extra trust-address replace-origin replace-session-connection rtcp-mux-demux ICE=remove RTP/AVP Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: ERROR: {1 2 INVITE udfal237dcbsaao5u84v} rtpengine [rtpengine.c:3397]: select_rtpp_node(): rtpengine failed to select new for calllen=20 callid=udfal237dcbsaao5u84v Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: ERROR: {1 2 INVITE udfal237dcbsaao5u84v} rtpengine [rtpengine.c:2737]: rtpp_function_call(): no available proxies Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3046]: INFO: {2 2 INVITE udfal237dcbsaao5u84v} <script>: #015#012FS_REPLY - <null> : INVITE : 100 Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3042]: INFO: {2 2 INVITE udfal237dcbsaao5u84v} <script>: #015#012FS_REPLY - <null> : INVITE : 183 Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3042]: INFO: {2 2 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: Branch [0] to <null> -- FLAGS: 8192 Checking Conditions Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3042]: INFO: {2 2 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: Source Protocol:udp Destination Protocol: UDP Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3042]: INFO: {2 2 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: (Branch:[0] EngineID:1) RTP-Engine answer: via-branch=extra trust-address replace-origin replace-session-connection rtcp-mux-demux ICE=remove RTP/AVP Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3042]: ERROR: {2 2 INVITE udfal237dcbsaao5u84v} rtpengine [rtpengine.c:3397]: select_rtpp_node(): rtpengine failed to select new for calllen=20 callid=udfal237dcbsaao5u84v Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3042]: ERROR: {2 2 INVITE udfal237dcbsaao5u84v} rtpengine [rtpengine.c:2737]: rtpp_function_call(): no available proxies Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: INVITE from: sip:voc_104@51.79.190.145 (IP:51.79.190.145:5062) to: sip:u9l1bt5k@m2kc1a56vh3q.invalid;transport=ws;lhst=103.133.141.52:53934;lm=midreg , ru=sip:u9l1bt5k@m2kc1a56vh3q.invalid;transport=ws;lhst=103.133.141.52:53934;lm=midreg Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: SOURCE_CLASSIFY: request INVITE from FS Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: FS_TO_KAM || sip:u9l1bt5k@m2kc1a56vh3q.invalid;transport=ws;lhst=103.133.141.52:53934;lm=midreg || sip:voc_104@51.79.190.145 --> sip:u9l1bt5k@m2kc1a56vh3q.invalid;transport=ws;lhst=103.133.141.52:53934;lm=midreg Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: FS_TO_KAM || looking for registered extension Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: LOCATION sip:u9l1bt5k@m2kc1a56vh3q.invalid;transport=ws;lhst=103.133.141.52:53934;lm=midreg Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: LOCATION || exturl = sip:voc_106@sip-dev.cleverstack.in Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: HANDLE_NAT_SDP: Branch [0] to sip:g321jqm6@14gassrhfn7h.invalid;transport=ws;lhst=103.133.141.52:53161;lm=midreg -- FLAGS: 8320 Checking Conditions Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: HANDLE_NAT_SDP: Source Protocol:udp Destination Protocol: WS Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: HANDLE_NAT_SDP: Saving RtpEngine ID: 4 into SIP R-Route params Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: HANDLE_NAT_SDP: (Branch:[0] EngineID:4) RTP-Engine offer: trust-address replace-origin replace-session-connection rtcp-mux-offer DTLS=passive SDES-off ICE=force RTP/SAVPF via-branch=extra DTLS-fingerprint=sha-256 Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: ERROR: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} rtpengine [rtpengine.c:3397]: select_rtpp_node(): rtpengine failed to select new for calllen=36 callid=1cd1065f-aec7-4360-8631-3198d673c841 Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: ERROR: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} rtpengine [rtpengine.c:2737]: rtpp_function_call(): no available proxies Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: WARNING: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <core> [core/forward.c:231]: get_send_socket2(): protocol/port mismatch (forced udp:51.79.190.145:5560, to ws:103.133.141.52:53161) Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: WARNING: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <core> [core/msg_translator.c:2864]: via_builder(): TCP/TLS connection (id: 0) for WebSocket could not be found Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: ERROR: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <core> [core/msg_translator.c:2040]: build_req_buf_from_sip_req(): could not create Via header Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: ERROR: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} tm [t_fwd.c:479]: prepare_new_uac(): could not build request Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: ERROR: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} tm [t_fwd.c:1757]: t_forward_nonack(): failure to add branches Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: ERROR: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} sl [sl_funcs.c:418]: sl_reply_error(): stateless error reply used: No error (2/SL) Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3043]: INFO: {1 90260957 ACK 1cd1065f-aec7-4360-8631-3198d673c841} <script>: ACK from: sip:voc_104@51.79.190.145 (IP:51.79.190.145:5062) to: sip:u9l1bt5k@m2kc1a56vh3q.invalid;transport=ws;lhst=103.133.141.52:53934;lm=midreg , ru=sip:u9l1bt5k@m2kc1a56vh3q.invalid;transport=ws;lhst=103.133.141.52:53934;lm=midreg Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3043]: INFO: {1 90260957 ACK 1cd1065f-aec7-4360-8631-3198d673c841} <script>: SOURCE_CLASSIFY: request ACK from FS ```
#### Log Messages
<!-- Check the syslog file and if there are relevant log messages printed by Kamailio, add them next, or attach to issue, or provide a link to download them (e.g., to a pastebin site). -->
``` Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 1 INVITE udfal237dcbsaao5u84v} <script>: INVITE from: sip:voc_104@sip-dev.cleverstack.in (IP:103.133.141.52:54169) to: sip:voc_106@sip-pd.cleverstack.in , ru=sip:voc_106@sip-pd.cleverstack.in Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: ERROR: {1 1 INVITE udfal237dcbsaao5u84v} nathelper [nathelper.c:745]: set_contact_alias(): you can't update contact twice, check your config! Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 1 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: Branch [0] to sip:voc_106@sip-pd.cleverstack.in -- FLAGS: 8192 Checking Conditions Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 1 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: Source Protocol:wss Destination Protocol: UDP Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 1 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: (Branch:[0] EngineID:1) RTP-Engine offer: via-branch=extra trust-address replace-origin replace-session-connection rtcp-mux-demux ICE=remove RTP/AVP Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: ERROR: {1 1 INVITE udfal237dcbsaao5u84v} rtpengine [rtpengine.c:3397]: select_rtpp_node(): rtpengine failed to select new for calllen=20 callid=udfal237dcbsaao5u84v Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: ERROR: {1 1 INVITE udfal237dcbsaao5u84v} rtpengine [rtpengine.c:2737]: rtpp_function_call(): no available proxies Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3050]: INFO: {2 1 INVITE udfal237dcbsaao5u84v} <script>: #015#012FS_REPLY - <null> : INVITE : 407 Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3050]: INFO: {1 1 INVITE udfal237dcbsaao5u84v} <script>: FS_FAULT Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 1 ACK udfal237dcbsaao5u84v} <script>: ACK from: sip:voc_104@sip-dev.cleverstack.in (IP:103.133.141.52:54169) to: sip:voc_106@sip-pd.cleverstack.in , ru=sip:voc_106@sip-pd.cleverstack.in Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 2 INVITE udfal237dcbsaao5u84v} <script>: INVITE from: sip:voc_104@sip-dev.cleverstack.in (IP:103.133.141.52:54169) to: sip:voc_106@sip-pd.cleverstack.in , ru=sip:voc_106@sip-pd.cleverstack.in Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: ERROR: {1 2 INVITE udfal237dcbsaao5u84v} nathelper [nathelper.c:745]: set_contact_alias(): you can't update contact twice, check your config! Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 2 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: Branch [0] to sip:voc_106@sip-pd.cleverstack.in -- FLAGS: 8192 Checking Conditions Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 2 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: Source Protocol:wss Destination Protocol: UDP Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: INFO: {1 2 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: (Branch:[0] EngineID:1) RTP-Engine offer: via-branch=extra trust-address replace-origin replace-session-connection rtcp-mux-demux ICE=remove RTP/AVP Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: ERROR: {1 2 INVITE udfal237dcbsaao5u84v} rtpengine [rtpengine.c:3397]: select_rtpp_node(): rtpengine failed to select new for calllen=20 callid=udfal237dcbsaao5u84v Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3071]: ERROR: {1 2 INVITE udfal237dcbsaao5u84v} rtpengine [rtpengine.c:2737]: rtpp_function_call(): no available proxies Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3046]: INFO: {2 2 INVITE udfal237dcbsaao5u84v} <script>: #015#012FS_REPLY - <null> : INVITE : 100 Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3042]: INFO: {2 2 INVITE udfal237dcbsaao5u84v} <script>: #015#012FS_REPLY - <null> : INVITE : 183 Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3042]: INFO: {2 2 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: Branch [0] to <null> -- FLAGS: 8192 Checking Conditions Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3042]: INFO: {2 2 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: Source Protocol:udp Destination Protocol: UDP Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3042]: INFO: {2 2 INVITE udfal237dcbsaao5u84v} <script>: HANDLE_NAT_SDP: (Branch:[0] EngineID:1) RTP-Engine answer: via-branch=extra trust-address replace-origin replace-session-connection rtcp-mux-demux ICE=remove RTP/AVP Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3042]: ERROR: {2 2 INVITE udfal237dcbsaao5u84v} rtpengine [rtpengine.c:3397]: select_rtpp_node(): rtpengine failed to select new for calllen=20 callid=udfal237dcbsaao5u84v Oct 23 02:08:17 ip145 /usr/sbin/kamailio[3042]: ERROR: {2 2 INVITE udfal237dcbsaao5u84v} rtpengine [rtpengine.c:2737]: rtpp_function_call(): no available proxies Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: INVITE from: sip:voc_104@51.79.190.145 (IP:51.79.190.145:5062) to: sip:u9l1bt5k@m2kc1a56vh3q.invalid;transport=ws;lhst=103.133.141.52:53934;lm=midreg , ru=sip:u9l1bt5k@m2kc1a56vh3q.invalid;transport=ws;lhst=103.133.141.52:53934;lm=midreg Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: SOURCE_CLASSIFY: request INVITE from FS Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: FS_TO_KAM || sip:u9l1bt5k@m2kc1a56vh3q.invalid;transport=ws;lhst=103.133.141.52:53934;lm=midreg || sip:voc_104@51.79.190.145 --> sip:u9l1bt5k@m2kc1a56vh3q.invalid;transport=ws;lhst=103.133.141.52:53934;lm=midreg Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: FS_TO_KAM || looking for registered extension Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: LOCATION sip:u9l1bt5k@m2kc1a56vh3q.invalid;transport=ws;lhst=103.133.141.52:53934;lm=midreg Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: LOCATION || exturl = sip:voc_106@sip-dev.cleverstack.in Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: HANDLE_NAT_SDP: Branch [0] to sip:g321jqm6@14gassrhfn7h.invalid;transport=ws;lhst=103.133.141.52:53161;lm=midreg -- FLAGS: 8320 Checking Conditions Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: HANDLE_NAT_SDP: Source Protocol:udp Destination Protocol: WS Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: HANDLE_NAT_SDP: Saving RtpEngine ID: 4 into SIP R-Route params Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: INFO: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <script>: HANDLE_NAT_SDP: (Branch:[0] EngineID:4) RTP-Engine offer: trust-address replace-origin replace-session-connection rtcp-mux-offer DTLS=passive SDES-off ICE=force RTP/SAVPF via-branch=extra DTLS-fingerprint=sha-256 Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: ERROR: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} rtpengine [rtpengine.c:3397]: select_rtpp_node(): rtpengine failed to select new for calllen=36 callid=1cd1065f-aec7-4360-8631-3198d673c841 Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: ERROR: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} rtpengine [rtpengine.c:2737]: rtpp_function_call(): no available proxies Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: WARNING: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <core> [core/forward.c:231]: get_send_socket2(): protocol/port mismatch (forced udp:51.79.190.145:5560, to ws:103.133.141.52:53161) Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: WARNING: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <core> [core/msg_translator.c:2864]: via_builder(): TCP/TLS connection (id: 0) for WebSocket could not be found Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: ERROR: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} <core> [core/msg_translator.c:2040]: build_req_buf_from_sip_req(): could not create Via header Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: ERROR: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} tm [t_fwd.c:479]: prepare_new_uac(): could not build request Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: ERROR: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} tm [t_fwd.c:1757]: t_forward_nonack(): failure to add branches Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3051]: ERROR: {1 90260957 INVITE 1cd1065f-aec7-4360-8631-3198d673c841} sl [sl_funcs.c:418]: sl_reply_error(): stateless error reply used: No error (2/SL) Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3043]: INFO: {1 90260957 ACK 1cd1065f-aec7-4360-8631-3198d673c841} <script>: ACK from: sip:voc_104@51.79.190.145 (IP:51.79.190.145:5062) to: sip:u9l1bt5k@m2kc1a56vh3q.invalid;transport=ws;lhst=103.133.141.52:53934;lm=midreg , ru=sip:u9l1bt5k@m2kc1a56vh3q.invalid;transport=ws;lhst=103.133.141.52:53934;lm=midreg Oct 23 02:08:18 ip145 /usr/sbin/kamailio[3043]: INFO: {1 90260957 ACK 1cd1065f-aec7-4360-8631-3198d673c841} <script>: SOURCE_CLASSIFY: request ACK from FS ```
#### SIP Traffic
<!-- If the issue is exposed by processing specific SIP messages, grab them with ngrep or save in a pcap file, then add them next, or attach to issue, or provide a link to download them (e.g., to a pastebin site). -->
``` (paste your sip traffic here) ```
### Possible Solutions
<!-- If you found a solution or workaround for the issue, describe it. Ideally, provide a pull request with a fix. -->
### Additional Information
* **Kamailio Version** - output of `kamailio -v`
``` 5.3.9 ```
* **Operating System**:
<!-- Details about the operating system, the type: Linux (e.g.,: Debian 8.4, Ubuntu 16.04, CentOS 7.1, ...), MacOS, xBSD, Solaris, ...; Kernel details (output of `lsb_release -a` and `uname -a`) -->
``` Centos7 & Debian 12 both have same issue ```
Closed #4005 as completed.
Generally, this is because you're calling the function when alias has already been set.
You may wish to consider a current version of kamailio (5.8/5.7) and use the [trim](https://www.kamailio.org/docs/modules/stable/modules/nathelper.html#nathelpe...) option.
This being said, this is not a bug and help should be obtained via the mailing list with issues utilized for software bugs.
Thank you.
My scenario is i have a dialer with built over sipjs. Everything is working fine. Once i am registering and unregister multiple times randomly That time i am getting this issue. Any solution for that?
My scenario is i have a dialer with built over sipjs. Everything is working fine. Once i am registering and unregister multiple times randomly That time i am getting this issue. Any solution for that?
Generally, this is because you're calling the function when alias has already been set.
You may wish to consider a current version of kamailio (5.8/5.7) and use the [trim](https://www.kamailio.org/docs/modules/stable/modules/nathelper.html#nathelpe...) option.
This being said, this is not a bug and help should be obtained via the mailing list with issues utilized for software bugs.
Thank you.
-
Fred Posner -
Md. Mostafijur Rahman