電信客戶服務資訊系統 線路設備運用管理資訊系統 TOPS查訂線介面系統 電信客戶裝拆移異資訊系統 檔案傳輸協定 傳輸控制協定與網路互連通訊協定 主從架構 開放式資料庫連接協定 循序檔 索引檔 關聯檔 Telecom OPeration service system TOPS Line equipment application management information system LEAMIS The interface system between TOPS and LEAMIS Service order processing system SOPS File transfer protocol FTP Transmission control protocol/internet protocol TCP/IP Client/server architecture Open DataBase connectivity ODBC Sequential file Index file Relative file