curl --request POST \
  --url https://api.g-tateth.com/api/telephony/webrtc/capability-token \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "agentId": "<string>",
  "customerPhone": "<string>"
}
'

{
  "success": true,
  "data": {
    "capabilityToken": "<string>",
    "clientName": "<string>"
  }
}