To make Eyecon your default dialer –

Start by moving the Eyecon icon to the bottom of your phone for easy and immediate access every time you want to make a phone call.

When downloading Eyecon, you will be asked to provide permissions to the app and to choose Eyecon as your default dialer.

To make Eyecon your default dialer after registration, you can go to More > Settings > Full Screen Photos > Set Eyecon as default dialer.
You can always change full screen photos back to pop up by going to Settings and selecting “Popup”.