Predictive dialer is completely legal all over the world. You need to understand the Consumer Protection Act (TCPA) laws regarding telecommunication. According to the authorities, robocall software is not allowed for marketing and advertisement. Besides, there is also restriction regarding unlawful financial calls, messages, fax, or email. Contrary, under TCPA laws you can use a predictive dialer but only on the allowed numbers. Make sure, you don’t dial a number already registered in Do Not Call List.