We gratefully acknowledge the contributions of the following organizations:

• Telecommunications Industry Association, Inc. (TIA), for allowing us to use their published standards as source material for this book.

• Cellular Networking Perspectives Industry Newsletter, written by Mr. David Crowe, who continues to provide valuable insights into the wireless industry. David s ten years of published information provided us with a great deal of source material and many outstanding ideas that added to the quality of this book.

We would also like to thank the following group of individuals the contributors to the IS-41 Revision C standard: Jean Alphonse, Phil Audino, Cheryl Blum, Jane Bissonnette, Alain Boudreau, Terri Brooks, Arzu Calis, Kirk Carlson, Lynn Carlson, Sharat Chander, Ben Chen, Jeff Crollick, David Crowe, Erkin Cubukcu, Amy Dwyer, Robert Ephraim, A. Gains Gardner, Thomas Ginter, Anthony Golka, Ed Hall, Huel Halliburton, Alejandro Holcman, Michel Houde, Chuck Ishman, Terry Jacobson, Stephen Jones, Joe Juliano, Irfan Khan, Barry Kratz, Bill Krehl, Sunit Lohtia, Paxton J. Louis, John Marinho, Eileen McGrath-Hadwen, Charlene Meins, Robert Montgomery, David Munsinger, C. Peter Musgrove, Peter Oldfield, Gustavo Pavon, Gary Pellegrino, Tom Richter, Raul Rodriguez, Asim Roy, Todd Shingler, Jay Tang, Ed Tiedemann, Dennis Velte, Tim Verdonk, Terry Watts, John Willse, Mike Youngberg.

We also want to thank the additional contributors to the most recent version of ANSI-41: Susan Anctil, Arturo Arreaga, Brye Bonner, Wayne Bowen, Sam Broyles, Roger L. Bunting, Raul Cardenas, Louis S. Degni, Tim Dunn, Scott Easley, Andreas Flach , Gilberto Frederick, Leonel Garza, Jim Gately, Marcia...