JL089型传呼电话系统是杭州九二无线电厂根据我国881009679号发明专利,采用大规模集成电路而试制成功的。该系统以微电脑为控制核心,由一个主控电话机,通过一根双绞线连接若干个转接器和电话分机组成。它可挂接多个用户分机。该系统的主控电话机可以拨通系统内任何一分机,进行保密通话,任何分机也可呼叫主控电话机,并可通过主控机转拨和外线电话及本系统内分机通话。该系统具有安装简单、价格低、能耗少等特点,适合于工厂、商店、矿山、旅馆、医院、机关、学校、住宅区、办公楼等作为内部通讯和生产调度。使用该电话系统,可 JL089 paging telephone system is based on the invention of 881009679 invention patent of Hangzhou No.22 Radio Factory, which is successfully trial-produced by using large-scale integrated circuits. The system uses a microcomputer as the control center, consisting of a master telephone and a number of adapters and extension phones connected by a twisted pair cable. It can be attached to multiple user extensions. The system’s master telephone can dial any extension in the system for confidential conversation, any extension can also call the master telephone, and can be transferred through the host computer and external calls and extension calls within the system. The system has the characteristics of simple installation, low price and less energy consumption, and is suitable for factories, shops, mines, hotels, hospitals, offices, schools, residential areas and office buildings as internal communication and production scheduling. Use this phone system