You have full control over who sees the Callout widget and where it appears.

• Display Device: Choose whether the button should appear on All Devices or if it should be restricted to Mobile Only. (Mobile-only is highly recommended if you strictly want to leverage native smartphone dialing).
• Page Targeting: Decide where the widget loads to optimize your conversion paths. You can display it across your Entire Site, or restrict it to the Homepage Only, Pages Only, or Posts Only.