mtso

Mobile Telephone Switching Office -- 行動電話交換局
The central switch that controls the entire operation of a cellular system. It is a sophisticated computer that monitors all cellular calls, tracks the location of all cellular-equipped vehicles traveling in the system, arranges handoffs, keeps track of billing information, etc.
它是蜂窩系統的關鍵。MTSO首先把頻率分配到每個呼叫中，然後在相互聯繫的傳送呼叫中進行頻率的再分配，它們是本地區域和具有遠程傳輸線的電話公司之間傳遞的付費信息。每個蜂窩狀系統都有一個或多個MTSO和轉換器。