Welcome to the du4.org Encyclopedia of Telecommunications.

It should be pretty straightforward - look up a term using the first letter of the word you want to know about using the alphabet above or seek the meaning of an acronym.

Good luck and I'm sorry if your term is not there yet.

To get back to the home page use the yellow box at the top.

If you have any comments contact me using the usual format at: ian at dufour dot co dot uk (this is to avoid automated mail address detectors and hence avoid spam)