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  •  China "YD" Standards List:
    • Standard  Code Standard English Title Standard Class Order
    YD/T 1657.2-2007 Technical Specification for the Proxy Supporting Network Address Translation/Firewall Traverse of Multimedia Services. Part 2: SIP Proxy

    China Telecommunication - YD Standards
    YD/T 1657.1-2007 Technical Specification for the Proxy Supporting Network Address Translation/Firewall Traverse of Multimedia Services. Part 1: H.323 Proxy

    China Telecommunication - YD Standards
    YD/T 1656-2007 Technical Requirement for Interconnection of IPv4 Network over IPv6 Backbone (4 over 6)Via Border Gateway Protocol Multi-Protocol Extensions (BGP-MP)

    China Telecommunication - YD Standards
    YD/T 1655-2007 Technical Specification for IPTV-STB

    China Telecommunication - YD Standards
    YD/T 1654-2007 Service Specification for IPTV

    China Telecommunication - YD Standards
    YD/T 1653-2007 General Technical Specification for Streaming Media over IP-based Network

    China Telecommunication - YD Standards
    YD/T 1652-2007 Testing Methods for IP User Service Gateway

    China Telecommunication - YD Standards
    YD/T 1651-2007 Technical Specification for IP User Service Gateway

    China Telecommunication - YD Standards
    YD/T 1650-2007 Technical Specification for the Non-realtime Transportation of IP Fax Data

    China Telecommunication - YD Standards
    YD/T 1649-2007 Testing Methods for Push to Talk Server over Cellular

    China Telecommunication - YD Standards
    YD/T 1648-2007 Technical Requirements for Push to Talk Server over Cellular

    China Telecommunication - YD Standards
    YD/T 1647-2007 Testing Mothods for Push to Talk Termination over Cellular

    China Telecommunication - YD Standards
    YD/T 1646-2007 Technical Specification for Push to Talk Termination over Cellular

    China Telecommunication - YD Standards
    YD/T 1645-2007 General Technical Specification for Push to Talk over Cellular Service

    China Telecommunication - YD Standards
    YD/T 1644.1-2007 Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices-Human models, instrumentation, and procedures - Part 1: Procedure to determine the specific absorption rate (SAR) for hand-held devices used in close p

    China Telecommunication - YD Standards
    YD/T 1641-2007 Technical Specification for Internet Network Service Quality

    China Telecommunication - YD Standards
    YD/T 1640-2007 Technical Specification for Softswitch and Digital Trunking Mobile Communication System Inter-working between Networks

    China Telecommunication - YD Standards
    YD/T 1639-2007 Security Specification and Testing Methods for the Short Message Centre Equipments and Short Message Gateway Equipments

    China Telecommunication - YD Standards
    YD/T 1638-2007 Technical Specification for IPv4 Networks and IPv6 Networks Inter-networking Between Networks

    China Telecommunication - YD Standards
    YD/T 1350.4-2007 Technical specification for interface of WDM network management system. Part 4: Interface based on CORBA/IDL

    China Telecommunication - YD Standards
    YDC 061-2007 (Supporting network security requirements)

    China Telecommunication - YD Standards
    YDC 055-2007 (Mobile communication network security requirements)

    China Telecommunication - YD Standards
    YDC 052-2007 (Telecommunications networks and the Internet backup and disaster recovery implementation guide)

    China Telecommunication - YD Standards
    QB 2585-2007 Hydromassage bathtub

    China Light Industry - YD Standards
    QB 2395-2007 Food additive. Test-Butyl Hydroquinone (TBHQ)

    China Light Industry - YD Standards
    SN/T 1925-2007 Determination of streptomycin and dihydrosteptomycin residues in bee products for import and export. LC-MS/MS

    China Import Export Inspection - YD Standards
    SN/T 1900-2007 Identification of Cephalosporium maydis Samra,Sabet et Hingorani

    China Import Export Inspection - YD Standards
    YD/T 1674-2007 Technical Specification for 2GHz cdma 2000 Digital Cellular Mobile Communication Network Broadcast-Multicast Service Equipment:Access Terminal

    China Telecommunication - YD Standards
    YD/T 1673-2007 Technical Requirement for 2GHz cdma2000 Digital Cellular Mobile Communication Network Broadcast-Multicast Service Equipment:Access Network

    China Telecommunication - YD Standards
    YD/T 1637-2007 Technical Specification and Testing Methods for N-frequency Capable Equipments of 2GHz TD-SCDMA Digital Cellular Mobile Communication Network

    China Telecommunication - YD Standards

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