China National Standards

China services:Phase Industry Standards English PDF List

  •  China "services:Phase" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    YD/T 1264-2003 General technical requirement of IP telephony and Ip fax services:Phase two
    ip电话/传真业务总体技术要求(第二阶段)    		 China Telecommunication Standards
    services:Phase
    English PDF

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