【国外标准】 Automatic answering equipment and general procedures for automatic calling equipment on the general switched telephone network including procedures for disabling of echo control devices for both manually and automatically established calls
本网站 发布时间:
2025-10-22
- ITU-T V.25
- 现行
- 定价: 无文本
- 在线阅读
开通会员免费在线看70000余条国内标准,赠送文本下载次数,单本最低仅合13.3元!还可享标准出版进度查询、定制跟踪推送、标准查新等超多特权!  
查看详情>>
适用范围:
暂无
标准号:
ITU-T V.25
标准名称:
Automatic answering equipment and general procedures for automatic calling equipment on the general switched telephone network including procedures for disabling of echo control devices for both manually and automatically established calls
英文名称:
标准状态:
现行-
发布日期:
2018-10-01 -
实施日期:
出版语种:
- 推荐标准
- ASTM C1256-25 Standard Practice for Interpreting Glass Fracture Surface Features
- ASTM D4221-25 Standard Test Method for Dispersive Characteristics of Clay Soil by Double Hydrometer
- ASTM E1316-25 Standard Terminology for Nondestructive Examinations
- ASTM E135-25 Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
- AS/NZS 3200.2.25:1993 Approval and test specification - Medical electrical equipment Particular requirements for safety - Electrocardiographs
- AS/NZS 3350.2.25:1997 Safety of household and similar electrical appliances Particular requirements - Microwave ovens
- AS/NZS 4266.25:1996/Amdt 1:1997 Reconstituted wood-based panels - Methods of test - Determination of resistance to staining
- AS/NZS 60079.25:2004 Electrical apparatus for explosive gas atmospheres Intrinsically safe systems
- AS/NZS 60079.25:2011 Explosive atmospheres Intrinsically safe electrical systems
- AS/NZS 60335.2.25:2002/Amdt 2:2006 Household and similar electrical appliances - Safety Particular requirements for microwave ovens including combination microwave ovens (IEC 60335-2-25 Ed 5.1, MOD)
- ASTM A1008/A1008M-25 Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Required Hardness, Solution Hardened, and Bake Hardenable
- ASTM A1018/A1018M-25 Standard Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled, Carbon, Commercial, Drawing, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, and Ultra-High-Strength
- ASTM A1031/A1031M-25 Standard Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Alloy, Drawing Steel and Structural Steel, Hot-Rolled
- ASTM A1043/A1043M-25 Standard Specification for Structural Steel with Low Yield to Tensile Ratio for Use in Buildings
- ASTM A1046/A1046M-25a Standard Specification for Steel Sheet, Zinc-Aluminum-Magnesium Alloy-Coated by the Hot-Dip Process

我的标准
购物车
400-168-0010








