Telephony

The Complete iPhone 16 Guide For Seniors: An Easy, Step-by-Step Guide for Zero-Tech Beginners for Everyday Use (Full Color Edition)

Packet Guide to Voice over IP: A system administrator's guide to VoIP technologies

Asterisk: The Definitive Guide: Open Source Telephony for the Enterprise

How Telephones Work: A Deep Dive into the Evolution of Telephony, Modern Networks, and the Future of Global Communication (HOW IT WORKS: THE SCIENCE OF TECHNOLOGY AND INNOVATION Book 20)

The Comprehensive Guide to Radio Engineering: RF Fundamentals, Wireless Systems, and Professional Applications

Asterisk: The Definitive Guide: The Future of Telephony Is Now

Indoor Ham radio for Beginners: A Practical Guide to Building, Tuning, and Operating a Reliable Indoor Station

The iPhone Developer's Cookbook: Building Applications with the iPhone SDK