Shenzhen Ejoin Technology Co.,Ltd. (Ejointech )was founded in Shenzhen, China in 2003, focused on VoIP technologies and solutions. With our expertise in high quality analog/digital voice gateways, media trunks, IP phones, Video phones, IPPBX, IVR, ACD and value added applications, we also provides specialized service as powerful and flexible based-SIP VoIP communication solutions, OEM and ODM services for carriers and providers around the world. Ejointech has its own R&D department , ...