Cart:
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| YD/T 2578.5-2013 |
Test method for user equipment of LTE FDD digital cellular mobile telecommunication network (Phase 1). Part 5: network compatibility test LTE FDD数字蜂窝移动通信网 终端设备测试方法（第一阶段） 第5部分：网络兼容性测试 |
China Telecommunication Standards |
 English PDF |
| YD/T 2578.4-2013 |
Test method for user equipment of LTE FDD digital cellular mobile telecommunication network (phase 1). Part 4: protocol comformance test LTE FDD数字蜂窝移动通信网 终端设备测试方法（第一阶段） 第4部分：协议一致性测试 |
China Telecommunication Standards |
English PDF |
| YD/T 2578.3-2013 |
Test method for user equipment of LTE FDD digital cellular mobile telecommunication network (phase 1). Part 3: radio resource management performance test LTE FDD数字蜂窝移动通信网 终端设备测试方法（第一阶段） 第3部分：无线资源管理性能测试 |
China Telecommunication Standards |
English PDF |
| YD/T 2578.2-2013 |
LTE FDD digital cellular mobile communication network terminal equipment test methods (the first stage) - Part 2: Radio frequency performance test LTE FDD数字蜂窝移动通信网 终端设备测试方法（第一阶段） 第2部分：无线射频性能测试 |
China Telecommunication Standards |
English PDF |
| YD/T 2578.1-2013 |
Test method for user equipment of LTE FDD digital cellular mobile telecommunication network (phase 1). Part 1: Basic operation, services and reliability test LTE FDD数字蜂窝移动通信网 终端设备测试方法（第一阶段） 第1部分：基本功能、业务和可靠性测试 |
China Telecommunication Standards |
English PDF |
| YD/T 2577-2013 |
Tethnical requirements for user equipment of LTE FDD digital cellular mobile telecommunication network (Phase 1) LTE FDD数字蜂窝移动通信网 终端设备技术要求（第一阶段） |
China Telecommunication Standards |
English PDF |
| YD/T 2576.5-2013 |
Test method for user equipment of TD-LTE digital cellular mobile telecommunication networ (Phasel). Parts:network compatibility test TD-LTE数字蜂窝移动通信网 终端设备测试方法（第一阶段） 第5部分：网络兼容性测试 |
China Telecommunication Standards |
English PDF |
| YD/T 2576.4-2013 |
Test method for user equipment of TD-LTE digital cellular mobile telecommunication network(Phasel). Part4:protocol comformance test TD-LTE数字蜂窝移动通信网 终端设备测试方法（第一阶段） 第4部分：协议一致性测试 |
China Telecommunication Standards |
English PDF |
| YD/T 2576.3-2013 |
Test method for user equipment of TD-LTE digital cellular mobile telecommunication network (phase 1). Part 3: radio resource management performance test TD-LTE数字蜂窝移动通信网 终端设备测试方法（第一阶段） 第3部分：无线资源管理性能测试 |
China Telecommunication Standards |
English PDF |
| YD/T 2576.2-2013 |
Test method for user equipment of TD-LTE digital cellular mobile telecommunication network (phase 1). Part 2: Radio transmission and reception performance test TD-LTE数字蜂窝移动通信网 终端设备测试方法（第一阶段） 第2部分：无线射频性能测试 |
China Telecommunication Standards |
English PDF |
| YD/T 2576.1-2013 |
Test method for user equipment of TD-LTE digital cellular mobile telecommunication network (phase 1). Part 1: Basic operation, services and reliability test TD-LTE数字蜂窝移动通信网 终端设备测试方法（第一阶段） 第1部分：基本功能、业务和可靠性测试 |
China Telecommunication Standards |
English PDF |
| YD/T 2575-2013 |
Technical requirements for user equipment of TD-LTE digital cellular mobile telecommunication network (phase 1) TD-LTE数字蜂窝移动通信网 终端设备技术要求（第一阶段） |
China Telecommunication Standards |
English PDF |
| YD/T 2574-2013 |
Test method for LTE FDD digital cellular mobile telecommunication network eNodeB equipment (phase 1) LTE FDD数字蜂窝移动通信网 基站设备测试方法（第一阶段） |
China Telecommunication Standards |
English PDF |
| YD/T 2573-2013 |
LTE FDD digital cellular mobile telecommunication network technical requirement of eNB equipment (phase 1) LTE FDD数字蜂窝移动通信网 基站设备技术要求（第一阶段） |
China Telecommunication Standards |
English PDF |
| YD/T 2572-2013 |
TD-LTE base station digital cellular mobile communication network equipment testing method (first stage) TD-LTE数字蜂窝移动通信网 基站设备测试方法（第一阶段） |
China Telecommunication Standards |
English PDF |
| YD/T 2571-2013 |
TD-LTE base station digital cellular mobile communication network equipment technical requirements (first stage) TD-LTE数字蜂窝移动通信网 基站设备技术要求（第一阶段） |
China Telecommunication Standards |
English PDF |
| YD/T 2570-2013 |
LTE digital cellular mobile communication network general requirement LTE数字蜂窝移动通信网 无线接入网总体技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2569-2013 |
TD-LTE digital cellular mobile telecommunication network X2 interface test method (phase 1) LTE数字蜂窝移动通信网 X2接口测试方法（第一阶段） |
China Telecommunication Standards |
English PDF |
| YD/T 2568.5-2013 |
LTE digital cellular mobile communication network X2 interface technical requirement (Phase 1). Part 5: data transport LTE数字蜂窝移动通信网 X2接口技术要求（第一阶段） 第5部分：数据传输 |
China Telecommunication Standards |
English PDF |
| YD/T 2568.4-2013 |
LTE digital cellular mobile communication network X2 interface technical requirement. Part 4: application protocol LTE数字蜂窝移动通信网 X2接口技术要求（第一阶段） 第4部分：应用协议 |
China Telecommunication Standards |
English PDF |
| YD/T 2568.3-2013 |
LTE digital cellular mobile communication network X2 interface technical requirement (Phase 1). Part 3: signalling transport LTE数字蜂窝移动通信网 X2接口技术要求（第一阶段） 第3部分：信令传输 |
China Telecommunication Standards |
English PDF |
| YD/T 2568.2-2013 |
LTE digital cellular mobile communication network X2 interface technical requirement (Phase 1). Part 2: layer 1 LTE数字蜂窝移动通信网 X2接口技术要求（第一阶段） 第2部分：层一 |
China Telecommunication Standards |
English PDF |
| YD/T 2568.1-2013 |
LTE digital cellular mobile communication network X2 interface technical-requirement. Part 1: general aspects LTE数字蜂窝移动通信网 X2接口技术要求（第一阶段） 第1部分：概述 |
China Telecommunication Standards |
English PDF |
| YD/T 2567-2013 |
LTE digital cellular mobile telecommunication network S1 interface test method (phase 1) LTE数字蜂窝移动通信网 S1接口测试方法（第一阶段） |
China Telecommunication Standards |
English PDF |
| YD/T 1484.6-2013 |
Measurement method for radiated RF power and receiver performance of wireless device. Part 6: LTE wireless device 无线终端空间射频辐射功率和接收机性能测量方法 第6部分：LTE无线终端 |
China Telecommunication Standards |
English PDF |
| YD/T 2408-2013 |
Test methods for security capability of smart mobile terminal 移动智能终端安全能力测试方法 |
China Telecommunication Standards |
English PDF |
| YD/T 2407-2013 |
Technical requirements for security capability of smart mobile terminal 移动智能终端安全能力技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2479-2013 |
Technical requirements for air iterface of SCDMA broadband wireless access system support trunking service 支持集群业务的scdma宽带无线接入系统 空中接口技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2469-2013 |
Information posting service requirements for 2GHz TD-SCDMA cellular network based service in rural areas 面向农业的基于2ghz td-scdma数字蜂窝移动通信网消息发布类应用技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2467.1-2013 |
Information model for telecommunication resource management. Part 1: service, subscriber and product 通信资源管理信息模型 第1部分：业务、用户和产品 |
China Telecommunication Standards |
English PDF |
| YD/T 2461-2013 |
Test method of services based on the unified 1MS. Multimedia conferencing service (Release 1) 基于统一ims的业务测试方法 多媒体会议业务（第一阶段） |
China Telecommunication Standards |
English PDF |
| YD/T 2507.2-2013 |
2GHz TD-SCDMA digital cellular mobile telecommunication network-HSPA+ -Iub interface technical requirement. Part 2: layer 1 2ghz td-scdma数字蜂窝移动通信网 增强型高速分组接入（hspa+） iub接口技术要求 第2部分：层1 |
China Telecommunication Standards |
English PDF |
| YD/T 1447-2013 |
Plastic optical fibre for communication 通信用塑料光纤 |
China Telecommunication Standards |
English PDF |
| YD/T 1319-2013 |
Telecommunication cable 500 radio frequency coaxial cable for wireless telecommucation with foamed polyolefin dielectric and braided outer conductor 通信电缆 无线通信用50ω泡沫聚烯烃绝缘编织外导体射频同轴电缆 |
China Telecommunication Standards |
English PDF |
| YD/T 1120-2013 |
Communication cable. Coupled mode leaky coaxial cables with foamed polyolefin dielectric and corrugated copper-tube outer conductor 通信电缆 物理发泡聚烯烃绝缘皱纹铜管外导体耦合型漏泄同轴电缆 |
China Telecommunication Standards |
English PDF |
| YD/T 1092-2013 |
Telecommunication cable. Foamed polyolefin dielectric, outer conductor, 50 ohm radio frequency coaxial cable for wireless communication 通信电缆 无线通信用50ω泡沫聚烯烃绝缘皱纹铜管外导体射频同轴电缆 |
China Telecommunication Standards |
English PDF |
| YD/T 1019-2013 |
Multicore and symmetrical pair cables for 数字通信用聚烯烃绝缘水平对绞电缆 |
China Telecommunication Standards |
English PDF |
| YD/T 1013-2013 |
Cabling system for building general electronic performance testing method 综合布线系统电气特性通用测试方法 |
China Telecommunication Standards |
English PDF |
| YD/T 983-2013 |
Limits and methods of measurement of electromagnetic compatibility of telecommunicatin power supply equipment 通信电源设备电磁兼容性要求及测量方法 |
China Telecommunication Standards |
English PDF |
| YD/T 814.1-2013 |
Closure for optical fiber cables. Part 1: Closure for outdoor optical fiber cables 光缆接头盒 第1部分：室外光缆接头盒 |
China Telecommunication Standards |
English PDF |
| YD/T 757-2013 |
Technical specifications for communication towers of angle steel 角钢类通信塔技术条件 |
China Telecommunication Standards |
English PDF |
| YD/T 703-2013 |
Technical requirement and testing method for group 3 document facsimile 文件传真三类机技术要求和测试方法 |
China Telecommunication Standards |
English PDF |
| YD/T 322-2013 |
Local telecommunication cable with polyolefin insulated copper conductors and laminated aluminium-polyethylene sheath 铜芯聚烯烃绝缘铝塑综合护套市内通信电缆 |
China Telecommunication Standards |
English PDF |
| YD/T 2507.1-2013 |
2GHz TD-SCDMA digital cellular mobile telecommunication network-HSPA＋- lub interface technical requirement. Part 1: general aspects 2ghz td-scdma数字蜂窝移动通信网 增强型高速分组接入（hspa+） iub接口技术要求 第1部分：总则 |
China Telecommunication Standards |
English PDF |
| YD/T 2506-2013 |
2GHz TD-SCDMA digital cellular mobile communication network enhanced high-speed packet access (HSPA +) Uu Interface RRC layer technical requirements 2ghz td-scdma数字蜂窝移动通信网 增强型高速分组接入（hspa+） uu接口rrc层技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2505.3-2013 |
2GHz TD-SCDMA digital cellular mobile telecommunication nework - HSPA+ Uu interface layer 2 technical requirements. Part 3: packet data convergence protocol (PDCP) 2ghz td-scdma数字蜂窝移动通信网 增强型高速分组接入（hspa+） uu接口层2技术要求 第3部分：pdcp协议 |
China Telecommunication Standards |
English PDF |
| YD/T 2505.2-2013 |
2GHz TD-SCDMA digital cellular mobile telecommunication network-HSPA+ Uu interface layer 2 technical requirements. Part 2: RLC protocol 2ghz td-scdma数字蜂窝移动通信网 增强型高速分组接入（hspa+）uu接口层2技术要求 第2部分：rlc协议 |
China Telecommunication Standards |
English PDF |
| YD/T 2505.1-2013 |
2GHz TD-SCDMA digital cellular mobile telecommunication network-HSPA+ Uu interface layer 2 technical requirement. Part 1: MAC protocol 2ghz td-scdma数字蜂窝移动通信网 增强型高速分组接入（hspa+） uu接口层2技术要求 第1部分：mac协议 |
China Telecommunication Standards |
English PDF |
| YD/T 2504.6-2013 |
2GHz TD-SCDMA digital cellular mobile telecommunication network. HSPA+ physical layer technical requirement. Part 6: physical layer measurement 2ghz td-scdma数字蜂窝移动通信网 增强型高速分组接入（hspa+） uu接口物理层技术要求 第6部分：物理层测量 |
China Telecommunication Standards |
English PDF |
| YD/T 2504.5-2013 |
2GHz TD-SCDMA digital cellular mobile telecommunication network. HSPA+ physical layer technical requirements. Part 5: physical layer procedure 2GHz TD-SCDMA数字蜂窝移动通信网 增强型高速分组接入（HSPA+） Uu接口物理层技术要求 第5部分：物理层过程 |
China Telecommunication Standards |
English PDF |
| YD/T 2504.4-2013 |
2GHz TD-SCDMA digital cellular mobile telecommunication network. HSPA+ physical layer technical requirement. Part 4: spreading and modulation 2ghz td-scdma数字蜂窝移动通信网 增强型高速分组接入（hspa+） uu接口物理层技术要求 第4部分：扩频与调制 |
China Telecommunication Standards |
English PDF |
| YD/T 2504.3-2013 |
2GHz TD-SCDMA digital cellular mobile telecommunication network. HSPA+ physical layer technical requirement. Part 3: multiplexing and channel coding 2ghz td-scdma数字蜂窝移动通信网 增强型高速分组接入（hspa+） uu接口物理层技术要求 第3部分：信道编码与复用 |
China Telecommunication Standards |
English PDF |
| YD/T 2504.2-2013 |
2GHz TD-SCDMA digital celllar mobile telecommunication network. HSPA+ physical layer technical requirement. Part 2: physical channels and mapping of transport channels onto physical channels 2ghz td-scdma数字蜂窝移动通信网 增强型高速分组接入（hspa+） uu接口物理层技术要求 第2部分：物理信道和传输信道到物理信道的映射 |
China Telecommunication Standards |
English PDF |
| YD/T 2504.1-2013 |
2GHz TD-SCDMA digital cellular mobile telecommunication network. HSPA+ physical layer technical requirement. Part 1: general desciption 2ghz td-scdma数字蜂窝移动通信网 增强型高速分组接入（hspa+） uu接口物理层技术要求 第1部分：总则 |
China Telecommunication Standards |
English PDF |
| YD/T 2503-2013 |
Technical requirement for non-point to point short message and mutimedia message interworking between networks 非点对点短消息和多媒体消息网间互通技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2496-2013 |
Handbook of mitigation measures for telecommunications installations 通讯安装中电磁故障缓解方法 |
China Telecommunication Standards |
English PDF |
| YD/T 2495-2013 |
Technical requirement of DT CQT record file in GSM/WCDMA wireless access network gsm/wcdma无线接入网路测（dt）和呼叫质量测试（cqt）测试记录技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2494-2013 |
Security test method for virtual tape library 通信虚拟磁带库（vtl）安全测试方法 |
China Telecommunication Standards |
English PDF |
| YD/T 2493-2013 |
Er/Yb co-doped double cladding optical fiber amplifier 铒/镱共掺双包层光纤放大器 |
China Telecommunication Standards |
English PDF |
| YD/T 2492-2013 |
Technical specification of 40Gb/s intensity modulation optical transponder 40gb/s强度调制光收发模块技术条件 |
China Telecommunication Standards |
English PDF |
| YD/T 2491-2013 |
Communication cable. Radiating leaky coaxial cable with foamed polyethylene dielectric and longitudinal wrapped copper outer conductor 通信电缆 物理发泡聚乙烯绝缘纵包铜带外导体辐射型漏泄同轴电缆 |
China Telecommunication Standards |
English PDF |
| YD/T 2490-2013 |
Flame retardant polyolefin heat-shrinkable tubing for communications 通信用阻燃聚烯烃热缩套管 |
China Telecommunication Standards |
English PDF |
| YD/T 2489-2013 |
Test methods for reconfigurable optical add multiplexing (ROADM) equipment 可重构的光分插复用（roadm)设备测试方法 |
China Telecommunication Standards |
English PDF |
| YD/T 2488-2013 |
Flexible steel tube armoured optical fiber cables 柔性钢管铠装光缆 |
China Telecommunication Standards |
English PDF |
| YD/T 2487-2013 |
Test methods for packet transport network (PTN) equipment 分组传送网（ptn）设备测试方法 |
China Telecommunication Standards |
English PDF |
| YD/T 2486-2013 |
Technical requirements of enhanced Multi-Service Transport Node (MSTP) 增强型多业务传送节点（mstp）设备技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2485-2013 |
Technical requirements for N×1OOGbit/s optical wavelength division multiplexing (WDM) systems n×100gbit/s 光波分复用(wdm)系统技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2557-2013 |
Technical requiements and testing methods for CRAC with refrigerant pumping-compressing dual cycles 通信用制冷剂泵-压缩机双循环系统技术要求和试验方法 |
China Telecommunication Standards |
English PDF |
| YD/T 2556-2013 |
Maintenance requirements of 240V direct current power supply system for telecommunications 通信用240v直流供电系统维护技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2555-2013 |
Distribution equipments of 240V direct current power supply for telecommunications 通信用240v直流供电系统配电设备 |
China Telecommunication Standards |
English PDF |
| YD/T 2554.1-2013 |
Plastic optical fiber connector - Part 1: Type LC 塑料光纤活动连接器 第1部分：lc型 |
China Telecommunication Standards |
English PDF |
| YD/T 2553-2013 |
Technical specification of 6Gb/s SFP+ optical transeiver module for base station interconnecting 6gb/s基站互连用sfp+光收发合一模块技术条件 |
China Telecommunication Standards |
English PDF |
| YD/T 2552-2013 |
Technical specification of 10Gb/s DWDM small form factor pluggable optical transceiver module 10gb/s dwdm xfp 光收发合一模块技术条件 |
China Telecommunication Standards |
English PDF |
| YD/T 2551-2013 |
Technical requirements for frequency synchrnization network based on packet networks 基于分组网络的频率同步网技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2550-2013 |
Test methods of time synchronization equipment 时间同步设备测试方法 |
China Telecommunication Standards |
English PDF |
| YD/T 2549-2013 |
Technical requirements for access network:PON system supporting IPv6 接入网技术要求 pon系统支持ipv6 |
China Telecommunication Standards |
English PDF |
| YD/T 2548-2013 |
The extension technical specification for DHCPv6 used in IPTV 用于iptv的dhcpv6扩展技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2547-2013 |
Multicast transition technique from IPv4 to IPv6 -multicast in 4-6-4 (DS-Lite) Deployments 组播迁移技术要求 在轻型双栈（ds-lite）场景下的组播迁移 |
China Telecommunication Standards |
English PDF |
| YD/T 2546-2013 |
Technical requirements of DHCPv6 option for Dual-stack Lite 支持轻型双栈（ds-lite）的dhcpv6选项技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2545-2013 |
Technical requirements of lightweight 4over6 in access network 边缘网络轻量级4over6过渡技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2544-2013 |
Technical specifications for carrier grade NAT (NAT44) 运营级nat44设备技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2543-2013 |
Energy Efficiencys Evaluation Methods of IDC 电信互联网数据中心（IDC）的能耗测评方法 |
China Telecommunication Standards |
English PDF |
| YD/T 2542-2013 |
Telecommunication Internet data center technology specification 电信互联网数据中心（idc）总体技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2484-2013 |
Technical requirements of packet enhanced optical transport network (OTN) equipment 分组增强型光传送网（otn）设备技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2483.2-2013 |
2GHz TD-SCDMA/WCDMA digital cell mobile communications network home NodeB subsystem management technical specification. Part 2: CORBA based information model design 2GHz TD-SCDMA/WCDMA数字蜂窝移动通信网家庭基站网络管理技术要求 第2部分：基于CORBA技术的信息模型设计 |
China Telecommunication Standards |
English PDF |
| YD/T 2483.1-2013 |
2GHz TD-SCDMA/WCDMA digital cell mobile communications 2ghz td-scdma/wcdma数字蜂窝移动通信网家庭基站网络管理技术要求 第1部分：信息模型 |
China Telecommunication Standards |
English PDF |
| YD/T 2482-2013 |
Technical requirements of smart card web server 智能卡web服务器技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2481-2013 |
Technical requirements and testing methods for mobile reading client 手机阅读业务 客户端技术要求和测试方法 |
China Telecommunication Standards |
English PDF |
| YD/T 2480-2013 |
Technical Requirements for description method of mobile internet open services 移动互联网开放服务描述方法技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2478-2013 |
Technical requirements for terminal of SCDMA broadband wireless access system support trunking service 支持集群业务的scdma宽带无线接入系统 终端技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2477-2013 |
Technical requirements for system of SCDMA broadband wireless access system support trunking service 支持集群业务的SCDMA宽带无线接入系统 系统技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2476-2013 |
High power amplifier with up converters for satellite communication earth station equipment technical requirement 卫星通信地球站设备 高功率变频放大器技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2475-2013 |
Low noise block for satellite communication earth station equipment technical requirement 卫星通信地球站设备 低噪声变频放大器技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2474-2013 |
Up converte/Down converter for satellite communication earth station equipment technical requirement 卫星通信地球站设备 上下变频器技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2473-2013 |
High power amplifier for satellite communication earth station equipment technical requirement 卫星通信地球站设备 高功率放大器技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2472-2013 |
Low noise amplifier for satellite communication earth station equipment technical requirement 卫星通信地球站设备 低噪声放大器技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2471-2013 |
General requirements on WAN based remote measurement and control applications for intelligent agriculture 基于广域网通信的智能农业远程测控应用总体技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2470-2013 |
Intservice requirement for 2GHz TD-SCDMA cellular network based service in rural areas 面向农业的基于2ghz td-scdma数字蜂窝移动通信网远程交互类应用技术要求 |
China Telecommunication Standards |
English PDF |
| YD/T 2541-2013 |
Technical requirements of emergency sessions services based on the unified IMS(Release 1) 基于统一ims的紧急呼叫业务技术要求（第一阶段） |
China Telecommunication Standards |
English PDF |
| YD/T 2540.1-2013 |
Technical requirements for priority calls in public telecommunication network. Part 1: GSM/TD-SCDMA/WCDMA network 公众电信网优先呼叫技术要求 第1部分：gsm/td-scdma/wcdma网络 |
China Telecommunication Standards |
English PDF |
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