What is ETVS also known as?

ETVS is known as the Enhanced Terminal Voice System. This system is designed to improve the efficiency and clarity of communication between air traffic controllers and pilots at airports. The enhancement refers to advanced features that provide better voice quality, increased reliability, and functionality over older systems.

Understanding the context of the name helps in remembering its purpose; "Enhanced" indicates that the system offers improvements over previous technologies, making it a vital tool in managing air traffic safely and effectively. The system is integral in environments where clear and concise communication is essential, such as during takeoffs, landings, and taxiing operations in busy airports.

The other terms in the choices, while they may contain elements related to voice or terminal systems, do not accurately or commonly represent ETVS as recognized within the aviation community.