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VALID TO BE VALID SUPERSEDED TO BE SUPERSEDED ABOLISHED TO BE ABOLISHED

Standard No. Title Translation Price Delivery Status Add To Cart YD/T 1535-2006 Technical Requirements of Equipment Security for PSTN-Calling Number Information 270 (USD) via email in 1-3 business day VALID Add To Cart YD/T 1263-2003 Technical Requirements for Interworking of network Based on IP with traditional telecommunication network 300 (USD) via email in 1-3 business day VALID Add To Cart

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