EXFO Inc., formerly EXFO Electro-Optical Engineering Inc., is a provider of test and service assurance solutions for network operators and equipment manufacturers in the global telecommunications industry. It offers core-to-edge solutions that assess the performance and reliability of converged, IP (Internet Protocol) fixed and mobile networks. Its test and service assurance solutions specifically target high-growth market opportunities related to increasing bandwidth and improving on networks: 3G, 4G/LTE (long-term evolution), wireless backhaul, small cells and distributed antenna systems (DAS), 100G network upgrades and fiber-to-the-home (FTTH)/fiber-to-the-curb (FTTC)/fiber-to-the-node (FTTN) deployments. In April 2014, the Company acquired the assets of ByteSphere LLC, a privately held software company in the Boston area that specializes in global IT management and network monitoring solutions. In June 2014, it acquired the business of Aito Technologies.