silver box

English

Noun

silver box (plural silver boxes)

  1. (telephony) A modified DTMF box that adds four additional keys, creating a four-column-by-four-key grid.

Coordinate terms

(colored boxes, especially electronic ones):

This article is issued from Wiktionary. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.