What does tel mean?

[MacStephanie]

In automobiles, 'tel' refers to the in-car telephone function button. The in-car telephone typically features: making and receiving calls, sending and receiving text messages, caller ID, internet access, digital dialing, contact list, call management, setting time and date, and more. Further details are as follows: 1. The primary users of in-car telephones are leaders of state organs and government departments, senior executives of enterprises, business professionals, and individuals who require outdoor operations. 2. It also includes personnel working in remote suburbs or mountainous areas, as well as special groups such as medical rescue teams, firefighters, police and armed police, geological surveyors, miners, oilfield workers, airport staff, space launch site personnel, or outdoor sports enthusiasts, among others.