> For the complete documentation index, see [llms.txt](https://help.thinkpickle.com.au/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.thinkpickle.com.au/flows/examples/block-a-number.md).

# 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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## Querying This Documentation
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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>
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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.