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 ...
AT&T Corp. and WorldCom Inc. last week separately introduced services designed to help customers cut costs and simplify their networks by running voice traffic over new or existing IP and frame relay ...
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