Products that can boost VoIP service

There's a slew of new tools coming into the wireless and VoIP world that promise to help IT avoid network bottlenecks and detect and remedy network issues that currently plague enterprises. Empirix, Agilent Technologies and Brix Networks are just three tool makers pushing out technologies that promise to let IT take a deep look at the VoIP network and not only assess issues, but provide "what if" scenarios if a networking change is made. The tools monitor throughput, volume issues, jitter and packet loss--quality of service issues. Article