POI

POINT OF INTERFACE, 即多系统合路平台

目前，运营商分别建设自己的覆盖系统所带来的重复建设等问题越来越突出。POI（POINT OF INTERFACE），即多系统合路平台。主要应用在需要多网络系统接入的大型建筑、市政设施内，如大型展馆、地铁、火车站、机场、政府办公机关等场所。该POI产品实现了多频段、多信号合路功能，避免了室内分布系统建设的重复投资，是一种实现多网络信号兼容覆盖行之有效的手段。

查看通信百科中关于“POI”的定义

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