> ## Documentation Index
> Fetch the complete documentation index at: https://docs.luly.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Setting max durations

<RequestExample>
  ```javascript Sendcall.js
  // Headers
  const headers = {
    authorization: "YOUR-API-KEY-HERE",
  };

  // Data
  const data = {
    phone_number: "+11233456789",
    task: "Inquire about the latest product updates.",
    max_duration: "10", // Call lasts for 10 minutes max
  };

  // API request
  await axios.post("https://api.luly.ai/v1/calls", data, { headers });

  ```

  ```python SendCall.py
  # Headers
  headers = {
      'authorization': 'YOUR-API-KEY-HERE'
  }

  # Data
  data = {
      'phone_number': '+11233456789',
      'task': 'Inquire about the latest product updates.',
      'max_duration': '10', # Call lasts for 10 minutes max
  }

  # API request
  response = requests.post('https://api.luly.ai/v1/calls', json=data, headers=headers)

  ```
</RequestExample>

<img src="https://mintlify.s3.us-west-1.amazonaws.com/developersden/images/maxDuration.png" />

## Introduction

Controlling the length of your AI-powered phone calls is crucial for efficiency and cost-effectiveness. In this guide, we’ll walk you through how to set a `max_duration `for your calls using Luly AI.

## Step 1: Understand max\_duration

The `max_duration` parameter allows you to specify the longest duration you want your call to last, measured in minutes. Once the set duration is reached, the call will automatically end.

## Step 2: Setup Your Authorization

Ensure you have your API key ready for authentication. If you haven’t obtained one, sign up on the [developer portal](https://portal.luly.ai/).

## Step 3: Define max\_duration in Your Call Data

When preparing your call data, include the `max_duration` parameter. You can set it as a float or a string.

Example values: `"30", "5.5", 45, 2.8`.

Here’s how you might include it in your request data:

```JSON
{
    "phone_number": "+11233456789",
    "task": "Inquire about the latest product updates.",
    "max_duration": "10", // Call lasts for 10 minutes max
}
```

## Step 4: Send the API Request

Use the provided JavaScript or Python code snippet to make the API request, ensuring you include the `max_duration` parameter.

## Step 5: Test and Adjust

After setting `max_duration`, test your calls to ensure they’re ending at the desired time. Adjust as necessary based on your needs and feedback.

## Conclusion

Setting a `max_duration` for your calls ensures they are concise and to the point, saving time and resources. You’re now ready to efficiently manage the length of your AI-powered calls with luly AI.

Remember, the key is to find the right balance between giving enough time for meaningful interaction and keeping the calls concise. Happy calling!