A Comparison of PSTN and IP Traffic From 1997 to 2015

A Comparison of PSTN and IP Traffic From 1997 to 2015.  Slides start on page #4.

[slideshare id=8515037&doc=acomparisonofpstnandiptrafficfrom1997to2015-110705135902-phpapp02&type=d]

Related

This week Square introduced preorder and pick-up services. On the

No surprise we’ll see TV promotions this holiday season. TVs

On August 6, 1998 the first HDTV was sold in