toll switching 中文意思是什麼
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We installed standalone exchanges in the press center that were equipped with pstnisdn interfaces to provide such services as international switching, toll switching, local hubbing and local switching. the international switching capacity reached 30, 000 circuit ports, and the toll switching capacity amounted to 126, 000 circuit ports
我們專門在新聞中心設立了獨立的交換機，採用Ｐ Ｓ Ｔ Ｎ Ｉ Ｓ Ｄ Ｎ業務介面，分別提供國際交換、長途交換、本地匯接和本地交換等業務，其中國際交換容量達到３萬路端，長途交換達到12 -
Technical requirements and test methods for toll connecting boards and special boards in manual toll telephone switching equipments
人工長途電話交換設備長途接續臺專線臺技術要求和測試方法 -
Technical requirements and test methods for monitor ' s desks in manual toll telephone switching equipments
人工長途電話交換設備班長臺技術要求和測試方法 -
Technical requirements and test methods for ringing, power sources, alarm and distribuing frame in manual toll telephone switching equipments
人工長途電話交換設備鈴流電源告警配線設備技術要求和測試方法 -
Technical requirements for toll manual switching equipment
長途人工電話交換設備.技術要求 -
Methods of test for toll manual telephone switching equipment
長途人工電話交換設備.測試方法 -
Toll switching trunk
長途交換干線 -
Technical requirements and test methods for exchangers of operating services in manual toll telephone switching equipments
人工長途電話交換設備營業處交換機技術要求和測試方法 -
Standard for quality inspection and evaluation of petroleum construction engineering. telecommunication engineering toll transit switching equipment installing engineering
石油建設工程質量檢驗評定標準.通信工程 -
Standard for quality inspection and evaluation of petroleum construction engineering telecommunication engineering toll transit switching equipment installing engineering
石油建設工程質量檢驗評定標準通信工程 -
Because it is difficult to collect catv toll, so the pay tv management control system is made. the addressable hub controlled by a single chip computer is the key part in the system. it has the function of switching the tv signal on / off, and it has been used widely in many cities. the structure and soft - hard ware design scheme in the addressable hub is introduced, which is a reference for design in future
為了解決有線電視入戶收費難的問題，採用可尋址集線器為核心器件，構成了有線電視可尋址收費控制管理系統，達到了有線電視收費現代化管理的目的，單片機是集線器的關鍵控制器件，實現了對用戶信號埠的遠動開關功能，並得到了廣泛的推廣應用，對集線器結構和軟硬體設計方案進行了介紹，可為設計類似系統提供參考和借鑒。 -
General technical requirements and test methods for manual toll telephone switching equipment
人工長途電話交換設備通用技術要求和測試方法 -
Technical requirements and test methods for relays in manual toll telephone switching equipments
人工長途電話交換設備中繼器技術要求和測試方法 -
This paper provides an efficient way to analyze those call irregular data detected in toll digital switching system
本文首先應用統計方法，對各種不同因素所造成的異常調用分配進行分析，並根據分析結果設計障礙判斷流程。
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