Which of the following is NOT an available type on link control?

In the context of Pega, link controls are used to create interactive elements that users can click on to navigate or perform actions. The available types of link controls—like Phone, Email, and URL—are specifically designed to facilitate interactions with external applications or resources.

Phone links are used to initiate a call when clicked on a device that supports telephony features. Email links allow users to compose an email by clicking on the link, typically opening the user's default email client with pre-filled information. URL links direct users to a specified web address, enabling navigation to web resources.

The Image type is not recognized as a distinct link control within Pega because it does not inherently serve as a functional link. While an image can be made clickable to lead to another action or URL, it operates differently compared to the designated phone, email, and URL types. These three serve specific, standardized functions which support user interactions aligned with typical behaviors expected in application interfaces.