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IP电话网关设备技术要求
Technical Requirements for IP Telephony Gateway
参考页数：73P.;A4
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自动用户交换机进网要求
Requirements for PABXs access to public telephone switching network
参考页数：38P.;A4
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手柄电话助听器耦合技术要求和测量方法
The Requirements of Hearing Aids Compatibility and Measurement Methods for Telephone Handset
参考页数：15P.;A4
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进出口信息技术设备检验规程 第7部分:有线电话机
参考页数：9P;A4
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程控电话交换机电源通用规范
General specification for power supply system of SPC exchange
参考页数：20P.;A4
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长途人工电话交换设备.测试方法
Methods of test for toll manual telephone switching equipment
参考页数：19P.;A4
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长途人工电话交换设备.技术要求
Technical requirements for toll manual switching equipment
参考页数：21P.;A4
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话带调制解调器测试方法
Methods of test for voice band modems
参考页数：9P.;A4
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专用电话设备型号命名方法
Type designation system for private telephone equipment
参考页数：
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电话交换机型号命名方法
Type designation system for telephone switchboards
参考页数：
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