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答主叫识别信息传送及显示(CID)业务是向被叫电话用户提供的一种新的服务项目,是指在被叫用户终端设备上显示主叫号码、主叫用户姓名、呼叫日期、时间等主叫识别信息并进行存储,以供用户查询的一种服务项目。ZXJ10机支持主叫号码显示功能,使用说明及具体实现方法如下:(1)将对应用户的用户外围单元处理器板换为具备 N—ISDN 功能的外
A. The CID service is a new service item provided to the called telephone user. It refers to displaying the calling number, the calling user’s name, the calling date and time on the called user terminal device Such as caller identification information and stored for users to query a service project. ZXJ10 machine support caller ID display, instructions for use and the specific implementation is as follows: (1) the user’s peripheral unit corresponding to the user processor board is replaced with N-ISDN function