Schema has designs on the wireless world. The company develops software used by mobile communications service providers to manage network resources and improve wireless signal quality. Compatible with the top wireless voice network protocols (GSM and CDMA), as well as WiMAX wireless data technology, its products are sold under the Ultima, Maxima, and Accura brands. Schema also provides software implementation, training, and network optimization services. Its global client base includes AT&T, Vodafone, and Alcatel-Lucent. The company has received venture capital funding from such firms as Walden Israel, BRM Capital, and EnerTech. Schema was founded in 1995 by director Dr. Yuval Davidor.