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

# Call Tracking on Your Website

> How Octanist replaces your phone number with a tracking number, and where.

With call tracking, the Octanist pixel shows each visitor a tracking number instead of your own phone number. Calls to that number are forwarded to you and linked to the visit, so you can see which ad, campaign or page led to the call.

## Website numbers

Octanist only replaces the phone numbers you list as **website numbers** in **Call tracking > General**. Add the number exactly as it appears on your website; any notation works:

| On your website | Recognized |
| - | - |
| `085 004 78 67` | Yes |
| `+31 85 004 78 67` | Yes |
| `+31 (0)85 004 78 67` | Yes |
| `0031 85 004 78 67` | Yes |
| `tel:+31850047867` links | Yes |

Nothing else on your pages is changed. Other phone numbers, KvK and VAT numbers, IBANs and order numbers always stay as they are.

<Note>
  The tracking number is written the same way as your own number, with the same spaces, dashes, dots and brackets: `085 - 004 78 67` becomes `085 - 083 57 45` and `+31 (0)85 004 78 67` becomes `+31 (0)85 083 57 45`. When the tracking number doesn't fit that layout, for example because it has more digits or a longer area code than your number, or comes from another country, Octanist writes it in the standard notation instead, such as `085 083 5745` or `+31 85 083 5745`.
</Note>

## Which pages show a tracking number

By default, a tracking number is shown on every page that shows your website number. Octanist can also limit this to selected pages, such as the landing pages of your ad campaigns, and only take a tracking number from your pool when a visitor is on one of them. This needs fewer tracking numbers.

When pages are limited, you can choose what happens when the visitor clicks through to another page:

| Setting | Other pages show |
| - | - |
| Only on selected pages | Your own number |
| Keep number for the rest of the visit | The same tracking number |

Octanist can also limit tracking numbers to **visitors from ads**: visits that arrive through a Google, Microsoft, TikTok, LinkedIn, X, Snapchat, Pinterest or Reddit ad click. Facebook and Instagram visits count when the link is tagged as paid, for example with `utm_medium=paid_social`.

Contact Octanist to change which pages use tracking numbers. Your current setting is shown in **Call tracking > General**.

## Installation

Call tracking uses the normal [tracking pixel](/docs/incoming-integrations/pixel) with `data-call-tracking="true"`. In [WordPress](/docs/incoming-integrations/wordpress), turn on **Call tracking** in the plugin settings.

```html theme={null}
<script
  src="https://c.octani.st/p"
  data-id="OCT-XXXXXXXX"
  data-consent-mode="auto"
  data-call-tracking="true"
></script>
```

## Excluding part of a page

Add `data-octanist-no-dni` to an element to keep your own number inside it, for example in a footer that must always show your main line:

```html theme={null}
<footer data-octanist-no-dni>
  Main office: 085 004 78 67
</footer>
```

## Good to know

* A visit is one browser tab. A link opened in a new tab starts a new visit.
* The number must be written as one piece of text. A number split over several elements, such as `085 <b>004</b> 78 67`, is not replaced.
* Form fields, account pages and your WordPress admin are never changed.


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