{
  "calls": [
    {
      "phone_number": "+1234567890",
      "script": {
        "text": "Hello, this is a test call."
      }
    },
    {
      "phone_number": "+0987654321",
      "script": {
        "text": "Hi, this is another test call."
      }
    }
  ],
  "concurrency": 2
}

{
  "calls": [
    {
      "phone_number": "+1234567890",
      "voice_id": "voice_female_1",
      "script": {
        "type": "sales_call",
        "steps": [
          {
            "text": "Hello, I'm calling about our new product."
          }
        ]
      }
    },
    {
      "phone_number": "+0987654321",
      "voice_id": "voice_male_1",
      "script": {
        "type": "support_call",
        "steps": [
          {
            "text": "Hi, I'm calling to follow up on your support ticket."
          }
        ]
      }
    }
  ],
  "concurrency": 5,
  "retry_config": {
    "max_attempts": 3,
    "delay": 300
  }
}

{
  "batch_id": "batch_xyz789",
  "total_calls": 2,
  "completed_calls": 1,
  "failed_calls": 0,
  "in_progress": 1,
  "calls": [
    {
      "id": "call_abc123",
      "status": "completed",
      "phone_number": "+1234567890"
    },
    {
      "id": "call_def456",
      "status": "in_progress",
      "phone_number": "+0987654321"
    }
  ]
}

{
  "retry_config": {
    "max_attempts": 3,
    "delay": 300,
    "backoff_multiplier": 2,
    "retry_on": ["busy", "no_answer", "failed"]
  }
}