White Papers and Articles

A number of magazines and companies have published information on IP Centrex. You might want to check these out.

• ISDN Centrex White Paper: This PDF file from the Council for Access Technologies describes the overall benefits of Centrex as well as the features and management capabilities that ISDN Centrex introduced. Although this paper does not emphasize IP Centrex, much of the content applies to equally to IP and traditional Centrex. A related PDF file answers Frequently Asked Questions about ISDN Centrex for Telecommuters.
• IP Centrex Creates New Opportunities for Equipment Manufacturers: This PDF file from Telcordia Technologies describes how IP Centrex works on a Class 5 switch platform and discusses the new business opportunities that are created by IP Centrex.
• The New Centrex: This article, by Bill Michael, is from the Feb.5, 2001 issue of Computer Telephony magazine.
• Centrex Revisited: This article, by Warren S. Hersch and Rick Laezman, is from the March 5, 2001 issue of Teleconnect magazine.
• Centrex Versus PBX: A New Look at an Old Debate: This article, by Ian Angus, was published by Telemanagement and is available from the One Unified web site.
• Making The Case For IP Centrex: This article, by William Flanagan, was published in the March 2003 issue of Internet Telephony. In addition, a sidebar by Bob Massad discusses How To Manage An IP Centrex Service.
• There are many more articles available on the web. Click here to use Google to search for "ip centrex".