How to implement QoS has always been a debatable issue for enterprise network engineers, especially those trying to take their TDM voice traffic and push it over a data network to save money. The goal in these cases is to make a change without end users ever knowing the difference. In such cases, the end user still uses the desk phone in the same way and ideally never hears any degraded voice quality as a result of poor QoS. As a result, the average end user has never been involved in the QoS debate. More...