To become a remote telemarketer, you typically need at least a high school diploma or GED certificate. Some previous experience in customer service or sales is helpful but not always required, and many companies provide on-the-job training to new employees. Many telemarketing sales jobs are commission-based, so you may need to have strong business skills and drive. Excellent negotiation, interpersonal, and customer service skills are necessary for this type of work-from-home position, along with a reliable internet and phone connection.