Web call back refers to a feature or service that allows a user to initiate a phone call through a website or online platform. This allows for seamless communication between the user and the recipient, without the need for traditional phone lines or equipment. With web call back, users can simply click a button or enter their phone number to be connected to the desired party, making it a convenient and efficient way to communicate. This technology is often used in customer service or sales scenarios, providing a more personalized and interactive experience for both parties involved.