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Batch Calls

The Batch Calls node enables you to initiate multiple AI-powered voice calls in a single request.

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Overview

This node allows you to:
  • Make multiple calls simultaneously
  • Use different scripts per call
  • Track batch progress
  • Handle bulk responses
  • Manage call priorities

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Configuration

ParameterTypeDescription
CallsArrayList of calls to make
ConcurrencyNumberMaximum concurrent calls
Retry ConfigObjectRetry settings for failed calls
Callback URLStringWebhook URL for batch events

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Example Usage

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Basic Batch Call

{
  "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
}

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Advanced Batch with Different Scripts

{
  "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
  }
}

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Batch Status Response

{
  "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"
    }
  ]
}

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Retry Configuration

Configure retry behavior for failed calls: 
{
  "retry_config": {
    "max_attempts": 3,
    "delay": 300,
    "backoff_multiplier": 2,
    "retry_on": ["busy", "no_answer", "failed"]
  }
}

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Batch Events

Events emitted during batch processing:
  • batch.started
  • batch.call_completed
  • batch.call_failed
  • batch.completed
  • batch.failed

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Error Handling

Common batch processing errors:
  • Invalid phone numbers
  • Script validation errors
  • Concurrency limits
  • Rate limiting
  • System capacity