{
  "operation": "list-calls",
  "method": "GET",
  "path": "/calls",
  "summary": "List Calls",
  "request": {},
  "response": [
    {
      "id": "call-abc123def456",
      "calling_number": "1001",
      "called_number": "+15555550123",
      "state": "connected",
      "tenant_uuid": "550e8400-e29b-41d4-a716-446655440000",
      "started_at": "2026-05-03T14:30:00Z",
      "duration": 120
    },
    {
      "id": "call-xyz789uvw012",
      "calling_number": "+15555550200",
      "called_number": "1002",
      "state": "queued",
      "tenant_uuid": "550e8400-e29b-41d4-a716-446655440000",
      "started_at": "2026-05-03T14:31:00Z",
      "duration": 60
    }
  ]
}