Now in its third edition! Introduction to Telephones and Telephone Systems provides telephone system managers, telecommunications sales prof...

The telephone you stashed away in your attic years ago is likely to be a magnificent treasure today! Enjoy this wonderful revised 3rd editio...

Covers conventional telephone fundamentals and analog and modern digital communications techniques Features sidebar notes and end of chapte...

The definitive guide to home and small business installation -- extensions, modems and telephone systems.Steve Roberts provides a practical ...

An easy introduction to using and configuring Asterisk to build feature-rich telephony systems for small and medium businesses.This book sho...

Now in its third edition! Introduction to Telephones and Telephone Systems provides telephone system managers, telecommunications sales prof...

A gripping intrigue at the heart of one of the world's most important inventions.While researching Alexander Graham Bell at MIT's Dibner Ins...

This quick-reference manual presents over 200 triage protocols for evaluating patients' symptoms over the telephone. Each symptom entry list...