Main Page | See live article | Alphabetical index Fall back is a feature of a modem protocol where two modems which experience data corruption (e.g. due to line noise) can renegotiate to use a lower speed connection. Fall forward< is a corresponding feature where two modems which have fallen back to a lower speed because of data corruption can later return to the higher speed if the connection improves. Article based on fall back and fall forward at FOLDOC, used with permission. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.