Halys est un acteur français de référence en matière de solutions réseaux LTE/4G/5G. VAS and Roaming product provider: Halys, ... leading provider of VAS and roaming platforms,helps its clients deploying clever telecommunication solutions:SMS/MMS services,open connectivity hubs, unified voice/video messaging services,location based services,welcome/bon voyage services,over the air OTA services,steering of roaming services,antispoofing/antispam SMS services,wap gateways,prepaid systems,GSM call termination over IP systems.Halys through the uniqueness of its integrated product system architecture and its skill sets is present at large and small operators for its flexible and scalable solutions as well as in groups of operators for its capability to combine the open connectivity concepts and the centralization of the services.,Halys is headquartered in Paris and present around the world. read more