"Daisy" is an AI-driven character created by O2 to combat phone scams. Developed with the help of fraud prevention experts, Daisy is designed to engage scammers in long-winded conversations, wasting their time and reducing the chances of them targeting real victims. The AI takes the form of a friendly grandmother, using stories about her fictional cat and family to keep scammers occupied. This approach not only frustrates scammers but also prevents them from advancing their schemes. Daisy can interact in real-time by using voice-to-text technology and generating responses through a large language model. Her conversations can last for over 40 minutes, as seen in multiple interactions