Intellectual property related to this product (including trademarks) and registered to
AT&T Corporation has been transferred to Lucent Technologies Incorporated.
Any references within this text to American Telephone and Telegraph Corporation
or AT&T should be interpreted as references to Lucent Technologies Incorporated.
The exception is cross references to books published prior to December 31, 1996,
which retain their original AT&T titles.
Lucent Technologies – formed as a result of AT&T's planned restructuring –
designs, builds, and delivers a wide range of public and private networks,
communication systems and software, consumer and business telephone systems,
and microelectronic components. The world-renowned Bell Laboratories is the
research and development arm for the company.