GL Communications Inc, is a global provider of test and measurement solutions and has over the years worked with major telecom equipment vendors, service providers, and system integrators to meet the testing requirements arising at various stages of telecom products development life cycle. GL offers a broad set of test solutions that help perform all types of testing on networks, from initial system design, to fine-tuning, troubleshooting, live deployment, and monitoring. The products are widely used to verify and ensure 'quality and reliability' of Wireless (4G LTE, 3G, 2G), SONET/SDH, IP, TDM, and PSTN networks. GL core product development is backed by a strong team of R&D experts to match evolving market and technical challenges in a most cost-effective and innovative way.