{
  "operationId": "addPhoneNumberToDncList",
  "method": "POST",
  "path": "/v3/campaign-management/dncList/{dncListName}/phoneNumber",
  "summary": "Add Phone Number to DNC List",
  "requestExamples": [
    {
      "contentType": "application/json",
      "name": "basic",
      "example": {
        "phoneNumber": "+1234567890",
        "source": "customer-request"
      }
    },
    {
      "contentType": "application/json",
      "name": "with-metadata",
      "example": {
        "phoneNumber": "+1987654321",
        "source": "regulatory-compliance",
        "reason": "Customer opted out via email"
      }
    }
  ],
  "responseExamples": [
    {
      "status": "201",
      "contentType": "application/json",
      "example": {
        "phoneNumber": "+1234567890",
        "source": "customer-request",
        "addedDate": "2024-01-15T10:30:00Z",
        "addedBy": "admin@example.com"
      }
    }
  ]
}