China National Standards

China videophone Industry Standards English PDF List

  •  China "videophone" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    YD/T 1237-2002 The technical requirement and test method for PSTN videophone
    pstn可视电话进网技术要求及测试方法    		 China Telecommunication Standards
    videophone
    English PDF

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