Publisher's Note The book is a reference with explanation of the state technology and opinions on what's out and what's here to stay, and also a guide to using phone technology. The author provides step-by-step comparisons of existing phone products and advantages/disadvantages too. The author addresses and answers such questions as: What's the cheapest and best product? What software and hardware do you need to use with which products? Does it really work? How much money can you save? Plus, readers will find similar coverage of video conferencing and audio technology since these technolgies are being developed at a pace with the telephony products.