Introduction: Global communications has become a must for all sectors of business and life for our world today. With the spreading use of the Internet, people across the globe are able to communicate. This paper will address the growing use of a technology to upgrade our old PSTN system of voice communications. This technology builds off the same technology we use today with our computers and the Internet. To begin I will give an overview …showed first 75 words of 2279 total…

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