Draft standard to match to and work with ETS 300 001/NET4. Apparatus with one or more particular functions for connection to public switched telephone networks run by certain public telecommunications operators. Apparatus with auto-calling, auto-answering and auto-clearing facilities-Specification for auto-calling facilities
起草与ETS 300 001/NET4相匹配并与之配合使用的标准 具有一个或多个特定功能的设备 用于连接某些公共电信运营商运营的公共交换电话网络 配备自动呼叫、自动应答和自动清算设施的设备 规格