Shenzhen Yuanchang Communication Technology Co., Ltd (mainland company),SinoVoip Co.Limited (HK company )was founded in 2004, is located in Nanshan District, Shenzhen, Guangdong, China. Since its inception, following the world's most advanced network technology, combined with practical application in China, to develop their own intellectual property rights of new voice, data, images integrated IP access products, and strive to become the broadband IP line of video and audio ...