Understanding Telephone Electronics, Third Edition
Covers conventional telephone fundamentals!  Explores how telephone systems operate and how digital electronics replace them.  "Introduces state-of-the-art speech circuits, dialing, ringing, and central office electronics. Dissects modems and digital transmission techniques. Studies microcomputers and cellular phones. Helps readers increase their knowledge quickly".        --HOWARD W SAMS & CO--This text refers to an out of print or unavailable edition of this title.