The term Voice over IP (VoIP) does not refer to a single service but encompasses an entire collection of services that can fill the phone service needs of many different residential and business ...
This week’s sneak peek of a Cisco Press book is Voice over IP Fundamentals, 2nd Edition by Jonathan Davidson, James Peters, Manoj Bhatia, Satish Kalidindi, and Sudipto Mukherjee. The book explains how ...
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