As VoIP technology grows in popularity, an increasing number of companies are demanding signal analysis, quality and performance monitoring tools to ensure high-quality communication. Hoping to tap into this demand, has announced that its widely deployed IP network troubleshooting and data analysis platforms, DA-3400 and DA-3600A, can now perform VoIP call quality monitoring on high capacity networks. The DA-3400 is able to support 8,000 simultaneous calls and the DA-3600A can support 64,000 calls to provide accurate and high-quality measurements when network load or utilization is at its highest.