BASIC TELEPHONE SWITCHING SYSTEMS, byDavid Talley telecommunications consulting engineer, Hayden Book Company, Inc, Rochelle Park, New Jersey,printed in 1969.This item is a book6" by 9"166 page softcover copy. This item is in good conditionwith some soiling and rubbing of the covers, the front cover has some oil stain, pages are clean and tight, I have not seen any writing on the pages.Chapters include:the growth of telephony, telephone system concepts, conveying switching information, signaling methods, switching network fundamentals, central office power, and much, much more. This book has illustrations. Thanks for Looking. L21DON’T FORGET TO CHECK OUR STORE, WE HAVE A GOOD SELECTION OF BOOKS AND VINTAGE POSTCARDS FOR A VERY GOOD PRICE AND WE SELL BOOKS BY LOTS TOO. Powered by eCRATER . List your items fast and easy and manage your active items.