This document describes GSX Monitor & Analyzer, a software product that monitors Microsoft Lync 2013 performance from an end user perspective. Some key points: - GSX simulates real user interactions with Lync like IM, conferencing, and phone calls to test performance and availability. - It monitors Lync servers, services, usage statistics and collects performance counters to troubleshoot issues. - Reports provide alerts on latency or quality issues, and include trends and forecasts to justify costs and capacity planning. - The tool integrates with Microsoft SCOM and other management platforms for centralized monitoring.