The term TEL. WORKER is a combination of two words, 'TEL' and 'WORKER'. TEL stands for Telecommunications, which is the science and technology of transmitting information over distances using electronic devices. A WORKER in this field is someone who is employed in the telecommunications industry, typically in a customer service or technical support role. They are responsible for providing assistance to customers with their telecommunications needs, such as setting up new services, troubleshooting problems, and providing technical advice.