BS 6789-2:1984-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带扩音器的设备规范-国家数字标准馆

现行 BS 6789-2:1984

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Apparatus with one or more particular functions for connection to public switched telephone networks run by certain public telecommunications operators-Specification for apparatus with loudspeaking facilities 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带扩音器的设备规范

发布日期： 1984-03-30

连接到单一交换线路的扩展设备中扩音器的要求。仅适用于包含扬声器设备的设备还提供整体手持电话或相关手持电话功能的情况。交叉引用:BS 1088BS 2475BS 3593BS 4778BS 5940:第1BS 6305BS 6312BS 6317BS 6789:第1BS 6789:第6CCITT建议P.34CCITT建议P.51CCITT建议P.531981年英国电信法

Requirements for loudspeaking facilities incorporated in extension apparatus for connection to a single exchange line. Applies only where the apparatus containing the loudspeaking facility also provides either integral handset telephony or the capability of associated handset telephony.Cross References:BS 1088BS 2475BS 3593BS 4778BS 5940:Part 1BS 6305BS 6312BS 6317BS 6789:Part 1BS 6789:Part 6CCITT Recommendation P. 34CCITT Recommendation P.51CCITT Recommendation P. 53British Telecommunications Act 1981

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发布单位或类别：英国-英国标准学会

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