Definition
A telecommunications system used by the FAA to carry voice communications between air traffic facilities, controllers, and other operational positions over dedicated lines.
Plain English
The phone-and-radio network the FAA uses internally to talk between control facilities and operational staff.
Context Anchor
Seen in FAA acronym lists, facility notices, and outage information when a voice communication system is being identified.
Derivation
Voice means spoken sound. Telecommunications comes from tele, meaning distance, and communication, meaning sharing information. Together, the phrase means sharing spoken information over a distance.
Why Pilots Care
Pilots rarely interact with the VTS directly, but it is the underlying system that lets controllers in different facilities coordinate handoffs, traffic, and clearances behind the scenes.
Intuition Check
VTS is not a radio call you say over the microphone. It is the system that carries the spoken communication.
Example Sentence 1
When a flight is handed off from one center to the next, the controllers coordinate over the VTS before the pilot hears the new frequency.
Example Sentence 2
Controllers relied on the VTS when the primary radio link experienced interference.