Getting 400 error from https://api.flightproxy.skype.com/api/v2/cpconv rest API while connecting teams meeting

Question

----------------------------------------------- Request : --
https://api.flightproxy.skype.com/api/v2/cpconv

---------------------------------------------Reqest Body
{
  "conversationRequest": {
    "conversationType": null,
    "subject": null,
    "suppressDialout": false,
    "roster": {
      "type": "Delta",
      "rosterUpdate": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/27535f98/conversation/rosterUpdate/"
    },
    "properties": {
      "allowConversationWithoutHost": true,
      "enableGroupCallEventMessages": true,
      "enableGroupCallUpgradeMessage": true,
      "enableGroupCallMeetupGeneration": false
    },
    "links": {
      "conversationEnd": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/f9cfc62b/conversation/end/",
      "conversationUpdate": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/3bddab9b/conversation/update/",
      "localParticipantUpdate": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/c0b821e3/conversation/localParticipantUpdate/",
      "addParticipantSuccess": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/217a2608/conversation/addParticipantSuccess/",
      "addParticipantFailure": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/ee3783a6/conversation/addParticipantFailure/",
      "addModalitySuccess": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/ae9e74a0/conversation/addModalitySuccess/",
      "addModalityFailure": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/294b5e1a/conversation/addModalityFailure/",
      "confirmUnmute": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/f8840648/conversation/confirmUnmute/",
      "receiveMessage": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/c093ea83/conversation/receiveMessage/"
    }
  },
  "contentSharing": null,
  "participants": {
    "from": {
      "id": "8:acs:874045d9-7542-4341-a9f2-0a975d63309c_00000019-0573-cbb0-d68a-084822006849",
      "displayName": "Test user",
      "endpointId": "263a90e2-d50f-4680-b1c5-f81eb12ea0e1",
      "participantId": "2915c3bb-bd1b-470f-b280-76543453320b",
      "languageId": "en"
    },
    "to": []
  },
  "capabilities": null,
  "endpointCapabilities": 1271,
  "clientEndpointCapabilities": null,
  "endpointMetadata": {},
  "groupContext": null,
  "groupChat": {
    "threadId": "undefined",
    "messageId": null
  },
  "meetingInfo": {
    "meetingType": 2
  },
  "meetingData": null,
  "callInvitation": {
    "callModalities": [
      "Audio",
      "Video",
      "ScreenViewer"
    ],
    "replaces": null,
    "transferor": null,
    "clientTransferContext": null,
    "links": {
      "progress": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/c2be990b/call/progress/",
      "mediaAnswer": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/71b01acf/call/mediaAnswer/",
      "acceptance": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/a09479a0/call/acceptance/",
      "redirection": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/e86334f2/call/redirection/",
      "end": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/43b8c0e6/call/end/"
    },
    "clientContentForMediaController": {
      "controlVideoStreaming": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/4086aab7/call/controlVideoStreaming/",
      "csrcInfo": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/2ed0ba18/call/csrcInfo/",
      "dominantSpeakerInfo": "https://trouter2-azsc-krce-2-b.trouter.teams.microsoft.com:3443/v4/f/vpjhUAVvzkOJvOtpySzdBA/callAgent/8fb4ab3f-469b-4a4b-8d18-29a3240e1e34/1bdba2d5/call/dominantSpeakerInfo/"
    },
    "pstnContent": {
      "emergencyCallCountry": "IN",
      "platformName": "ACSWeb(3617/1.13.1.0_stable)/os=windows; osVer=10; browser=chrome; browserVer=112.0.0.0; formFactor=Desktop;/(default/0.0.0 azsdk-js-communication-calling/1.13.1)/TsCallingVersion=2023.13.01.40/Ovb=d367b8c3ef739c6060070622a5f4e73eed71d36c",
      "publicApiCall": false
    },
    "emergencyContent": null,
    "mediaContent": {
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x-microsoft-skype-message-id: 3f53cc7d-5cc1-4ea0-a636-03c531e9f147
x-skypetoken: eyJhbGciOiJSUzI1NiIsImtpZCI6IjVFODQ4MjE0Qzc3MDczQUU1QzJCREU1Q0NENTQ0ODlEREYyQzRDODQiLCJ4NXQiOiJYb1NDRk1kd2M2NWNLOTVjelZSSW5kOHNUSVEiLCJ0eXAiOiJKV1QifQ.eyJza3lwZWlkIjoiYWNzOjg3NDA0NWQ5LTc1NDItNDM0MS1hOWYyLTBhOTc1ZDYzMzA5Y18wMDAwMDAxOS0wNTczLWNiYjAtZDY4YS0wODQ4MjIwMDY4NDkiLCJzY3AiOjE3OTIsImNzaSI6IjE2ODUzMzEyNTciLCJleHAiOjE2ODU0MTc2NTcsInJnbiI6ImFtZXIiLCJhY3NTY29wZSI6InZvaXAiLCJyZXNvdXJjZUlkIjoiODc0MDQ1ZDktNzU0Mi00MzQxLWE5ZjItMGE5NzVkNjMzMDljIiwicmVzb3VyY2VMb2NhdGlvbiI6InVuaXRlZHN0YXRlcyIsImlhdCI6MTY4NTMzMTI1N30.RGKeRGz0bnQLdQ5gdXuEI53wdH6Xa8vVqYMijiQLB8CTX6XGJPd0DlAbLQIbTN10WGvhZXQws4oXny0WKEoszrAm_XLp81C0kfiZqQtsbs4e3MU4IOZbYLoaDlL8h9FumPBKYfYj0ssaNo_HDmgspcintXNrL5Sm2RPKVXNo78yCsJKtuxhji9S4z70RouUFNHt-21BWjO8bkI--ZMWdAF838pOqey4usCrDfQtuGY0JPbX-oPy1_XeTf97dedAHpTfAqs-Lf7MZHwboFtrUHnW84RvrBJoVDcEsheVCdV7ylpJ5htCxmf71pBoWu-g-y5LfBdMVn-uddtmnb9eFDw

------------------------------------------------------- Response Header -------------------------------------------------------

access-control-allow-credentials: true
access-control-allow-origin: http://localhost:4200
access-control-expose-headers: X-Microsoft-Skype-Chain-ID,X-Microsoft-Skype-ContentSharing-Chain-ID,X-Microsoft-Skype-Message-ID,X-Microsoft-Skype-Original-Message-ID,X-Microsoft-Skype-Content-Encoding,WWW-Authenticate
content-length: 218
content-type: application/problem+json; charset=utf-8
date: Mon, 29 May 2023 10:19:37 GMT
server: Kestrel
via: 2 a-flightproxy-jpea-01.flightproxy.skype.com
x-microsoft-skype-chain-id: 36a900e6-08ee-4035-9741-901c360d988a
x-microsoft-skype-client: ACSWeb(3617/1.13.1.0_stable)/os=windows; osVer=10; browser=chrome; browserVer=112.0.0.0; formFactor=Desktop;/(default/0.0.0 azsdk-js-communication-calling/1.13.1)/TsCallingVersion=2023.13.01.40/Ovb=d367b8c3ef739c6060070622a5f4e73eed71d36c
x-microsoft-skype-message-id: 3f53cc7d-5cc1-4ea0-a636-03c531e9f147
x-microsoft-skype-proxy-cluster-context: https://cc-krce-09.cc.skype.com:10101/cc/v1/calls?i=1
x-pgi: 3
x-pyi: 20

------------------------------------------------------------------- Used Library ===================================================

@azure/communication-calling
@azure/communication-common