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

# DND Phone Numbers

> Manage your Do Not Disturb list to prevent calls to specific numbers

## Overview

DND (Do Not Disturb) Phone Numbers allow you to explicitly block calls to specific phone numbers. This is crucial for compliance and respecting user preferences.

<Warning>
  **Important:** Calls will **NOT** be initiated to any phone number present in your DND list.
</Warning>

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## How It Works

1. **Add to List:** You can add phone numbers to the DND list via your [dashboard](https://callkaro.ai/dashboard/settings?tab=dnd-phones) or API.
2. **Automatic Check:** Before dialing any number, the system automatically checks if it exists in your DND list.
3. **Call Blocked:** If a match is found, the call is immediately blocked and not initiated.

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## Managing DND Numbers

### Adding a Number

You can add numbers to the DND list individually or in bulk.

### Removing a Number

If you need to resume calls to a specific number, you must remove it from the DND list first.

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## Best Practices

* **Compliance:** Regularly update your DND list based on user opt-out requests.
* **Verification:** Double-check numbers before adding them to ensure you don't accidentally block valid customers.