Call to Action, also known as CTA helps you get your message, product or offering to your visitors. A higher visibility helps your visitors to know more about your product which results into better conversions.
There are two main features of this extension:
CTA Box: Which helps you create Call to Action Boxes which can be placed above, below and with in the content automatically and manually.
CTA Bar: This is a notification bar that sticks below the window and helps you display a message sitewide.
Contact Bar: This is a CTA contact bar that sticks below the window and helps you display on AMP site.
The action you want people to take could be anything: download an ebook, sign up for a webinar, get a coupon, attend an event, etc.