XCAL-EZMO is an innovative MOS testing solution that can minimize the load on the Host PC by performing MOS calculation in it. It has 6 ports and each port comes with its own individual sound control, allowing independent standard-based voice quality (MOS) testing that can be used for both mobile-to-mobile or mobile-to-landline test scenarios. The unique feature of this tool is that any phone that supports Bluetooth, can be used for voice quality analysis ? proving that high quality, scalable and robust network benchmarking tools need not cost the earth.