Shenzhen Guowei Cesller Technology Co., Ltd., founded in 1996, is one of the largest manufacturers of professional group phone system in China.
WS824 Group phone CQC
WS824 CERTIFICATE FOR CHINA COMPULSORY PRODUCT CERTIFICATION
RoHS Test Report
NSN9000 CQC Certificate for China Compulsory Product
NSN9000 3C Certificate for China Compulsory Product 