This article is rated Start-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects:

United States: Government Low‑importance This article is within the scope of WikiProject United States, a collaborative effort to improve the coverage of topics relating to the United States of America on Wikipedia. If you would like to participate, please visit the project page, where you can join the ongoing discussions. Template Usage Articles Requested! Become a Member Project Talk Alerts United StatesWikipedia:WikiProject United StatesTemplate:WikiProject United StatesUnited States articles Low This article has been rated as Low-importance on the project's importance scale. This article is supported by WikiProject U.S. Government (assessed as Low-importance). Aviation: Aircraft C‑class This article is within the scope of the Aviation WikiProject. If you would like to participate, please visit the project page, where you can join the project and see lists of open tasks and task forces. To use this banner, please see the full instructions.AviationWikipedia:WikiProject AviationTemplate:WikiProject Aviationaviation articles C This article has been given a rating which conflicts with the project-independent quality rating in the banner shell. Please resolve this conflict if possible. This article has been checked against the following criteria for B-class status: Referencing and citation: criterion not met Coverage and accuracy: criterion not met Structure: criterion met Grammar and style: criterion met Supporting materials: criterion met This article is supported by the aircraft project.

New item. Part of Next Generation Air Transportation System. Richard McDonald Woods 10:44, 23 October 2009 (UTC)

"Current voice communications switches..."

There is no description of what a "voice communications switch" is.

I suspect it is a way of switching a controller's voice to a particular radio set?

In any event, this needs to be explained.

Maury Markowitz ( talk) 14:58, 6 June 2017 (UTC) reply