China National Standards

China Technical requirements 900 GB Standards List

  •  China "Technical requirements 900" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 28500-2012 Technical requirements of 900/1800MHz TDMA digital cellular mobile network signaling system NO.7 ISUP
    900/1800MHz TDMA 数字蜂窝移动通信网No.7 ISUP信令技术要求    		 China National Standards
    Technical requirements 900
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