QOS, Change And Troubleshooting VOIP

Mergist, Steve
August 2005
Business Communications Review;Aug2005, Vol. 35 Issue 8, p46
Trade Publication
This article discusses various issues related to how to sort out the problems associated with the quality of service (QOS) of voice over Internet protocol (VOIP) networks. When VOIP was used only for transport between legacy systems, voice quality could be controlled with the proper QOS settings on the edge routers. But with IP-telephony systems, VOIP moves further into the enterprise, touching more parts of the data network. QOS becomes more complicated when voice is converted to IP packets at the phone, when call processing applications are involved, and especially as more integration occurs between voice and data systems. This shift--from QOS being simply a point of interest on edge routers, to its being a necessity from end to end--is challenging organizations related to the information technology to better support and manage their converged infrastructures. Like any other application that runs on the network, voice requires that each device in the data path be configured correctly to transport the data. In a managed network, the QOS features of properly configured network equipment intelligently identify and route traffic based on its priority.


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