專利授權


電話交換機對於外線回電直接轉入原來撥外線者分線的方法 


專利名稱 電話交換機對於外線回電直接轉入原來撥外線者分線的方法
專利國家
   專利證書號
美國 US 8,625,759 B2
專利權人 國立台北科技大學
發明人 黃紹華、張舜傑
應用領域
需求項目









技術摘要


The present invention provides a “Phone Log” in a telephone switchboard for recording the extension numbers, the phone numbers dialed by the extension numbers and the accumulated times. When there is an outside call, the telephone switchboard will first check the “Phone Log” whether the telephone number of the outside call is on the “Phone Log” or not; if the telephone number of the outside call is on the “Phone Log”, then the outside call (callback) is connected directly to the corresponding extension; otherwise the outside call will be connected to an auto-attendant for connecting. As the accumulated time of each of the records reaches a time limit, the related record will be cleared out. After the callback is picked up by the corresponding extension successfully, the related record is also cleared out.


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