# Block a number

The following flow demonstrates how you can block certain numbers from calling you.

![](/files/-LFqWQOeKawcWQWSWSyW)

If the caller's number is either '0404 123 456' or '0404 222 333' the number will be rejected without charging you. The caller will receive a 'rejected' dial tone as described by the [Reject Call](/flows/actions/reject-call.md) action.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://help.thinkpickle.com.au/flows/examples/block-a-number.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.