Welcome to the Telex Communications, Inc. Handbook of Intercom Systems Engineering. The idea for this book came, as it does with many books and inventions, over drinks at a bar. A few of us “intercom types” were discussing our varied histories and experi
Description:
Welcome to the Telex Communications, Inc. Handbook of Intercom Systems Engineering. The idea for this book came, as it does with many books and inventions, over drinks at a bar. A few of us “intercom types” were discussing our varied histories and experi