Telecalling is a form of direct-response marketing and customer service that involves using the telephone to promote products/services, generate leads, collect data, or provide customer support through outbound calls or handling inbound inquiries. As the "voice of a business", a telecaller builds relationships with potential and existing customers by communicating directly, often following a script, to achieve specific sales or service goals. While it requires strong communication, persuasion, and problem-solving skills, telecalling remains a vital tool for customer engagement and business growth despite evolving technology.