An immigration telecaller engages with potential and existing clients to provide information on immigration services, such as visas and programs, answer inquiries, generate leads by promoting services, and set up appointments for immigration consultants or the firm. Key responsibilities include conducting outbound calls to promote services, handling inbound calls, educating clients on visa options and requirements, following up to convert leads, and maintaining client relationships. A high school diploma, excellent communication skills, and potentially multilingual abilities are common requirements for this role.