Cisco Blogs


Cisco Blog > Architect & DE Discussions

Accounting and Routing in the Internet

Accounting Traffic in the Internet Today

[the full article can be seen at http://www.internetsociety.org/sites/default/files/BGP-for-regulators.pdf]

Business Model Changes

In the past, voice traffic was transported over a dedicated voice infrastructure, and the data network infrastructure was established in parallel so that voice and data traffic did not interfere with each other. Traditional voice accounting and performance functions are standardized within SS7 (Common Channel Signaling System No. 7), the global standard for telecommunications, defined by the ITU-T. The success of data networks led to the development of techniques to encapsulate voice traffic in IP packets, and thus Voice over IP (VoIP) was born. Read More »

Tags: , , , , ,

From QoS to QoE: A Fundamental Change in Focus

By Steven Shepard, Contributing Columnist

I’ve been thinking a lot lately about evolution. Not the Darwinian type, nor even the evolution of business (such a common theme today among business strategists), but rather about the evolution of the market — and most specifically about the changing demands of the market as its choices become richer and more varied in the face of remarkable technological change.

Since 1876, when Alexander Graham Bell spilled a beaker of hydrochloric acid into his lap, causing him to call out to his colleague, “Come here Watson, I need you,” thus starting the communications revolution that would change the world (Watson unexpectedly heard Bell’s voice through the speaker on the device they had invented), telephone companies have prided themselves on the quality of the service they have offered to their customers.

Read More »

Tags: , , , , , , , ,