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

Why the Distinction Matters For decades, language was seen as

Yesterday Apple introduced Ping in iTunes 10. As Jobs described

BMW owners are now able to get real-time video support