Performance of lossless compression algorithms on voiceband data

Today's public switched telephone networks are being upgraded to use digital transmission and switching. The main disadvantage of digital transmission is the higher bandwidth required. To alleviate this problem, much research has been devoted into the compression of digitized voice signals. However, such compression techniques tend to have adverse effects on non-voice signals such as modems and faxes. This paper covers the performance of standard lossless compression algorithms on voiceband data signals.