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<div dir="ltr">I think the Invalid SDP body error message is caused by media transport protocol. Web phone(web phone from the customer selfcare with JsSip) send UDP/TLS/RTP/ASVP. While the pstn switch was execting a different protocol (bes RTP/AVP)</div>
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<div dir="ltr">Even if , i changed the transport protocol for both domain and subscriber preference under Nat and Media flow to RTP/AVP, the web phone keeps sending a different protocol. </div>
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<div dir="ltr">Is it possible fix that in ngcp? </div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif"><b>From:</b> Pa Ka <pa.ka12@outlook.com><br>
<b>Sent:</b> Wednesday, August 14, 2024 16:11<br>
<b>To:</b> spce-user@lists.sipwise.com <spce-user@lists.sipwise.com><br>
<b>Cc:</b> mcapetta@sipswise.com <mcapetta@sipswise.com><br>
<b>Subject:</b> RE: 400 Invalid SDP body - mr12.4.1
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Hello, I think the issue is cause by this unknow attribute the web phone sends. The same issue with the Sipwise web phone from the customer self-care web interface. It sends these unknow attribute.
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I updated the config.yml to remove line start with these attributes via: remove_line_startswith:</p>
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the loadbalancer removes those lines in the invite. However, the proxy doesn’t remove them. Any lead would be appreciated.</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: rtcp-rsize</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: rtcp-rsize</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: oldmediaip</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: rtcp</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: crypto</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: crypto</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: crypto</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: crypto</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: crypto</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: crypto</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: crypto</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: crypto</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: crypto</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: crypto</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: crypto</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: crypto</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: setup</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: fingerprint</p>
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Aug 14 16:04:30 sips ngcp-sems[180831]: [#7efc1f56c6c0] [attr_check, AmSdp.cpp:1591] DEBUG: unknown attribute: tls-id</p>
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<b><span style="font-family:"Calibri",sans-serif">From:</span></b><span style="font-family:"Calibri",sans-serif"> Pa Ka <pa.ka12@outlook.com>
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<b>Sent:</b> Wednesday, August 14, 2024 1:47 AM<br>
<b>To:</b> spce-user@lists.sipwise.com<br>
<b>Subject:</b> 400 Invalid SDP body - mr12.4.1</span></p>
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Hi, kindly guide me on how to resolve this issue below</p>
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FusionPBX is registered to spce via Gateway.</p>
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Calls initated from the fusionPBX returns the error below. Sngrep returns 400 Invalid SDP body error.</p>
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Aug 14 01:38:15.999565 sips proxy[3824]: NOTICE: FAILURE_ROUTE_LEG_B <script>: *** Failure route for leg-b call, code='400' - R=«sip:E.14@pstnIP:5060;transport=udp» ID=«3ed635f8-d4a2-123d-5d9b-6045bd5f9da7_b2b-1» UA='<null>'</p>
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Aug 14 01:38:16.000011 sips proxy[3821]: NOTICE: REPLY_ROUTE_NAT <script>: NAT-Reply - S=400 - Invalid SDP body M=INVITE IP=«MP fusionpbx IP»:«53205» («127.0.0.1»:«5080») ID=«3ed635f8-d4a2-123d-5d9b-6045bd5f9da7» UA='<null>' DESTIP=«127.0.0.1»:«6052»</p>
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