手機之自動以事件驅動指定轉接機制

Abstract

指定轉接(Call Forwarding)是一項傳統的電信服務。該服務允許使用者將手機來電轉接至另一個電話號碼。 但是指定轉接這項服務需要使用者手動地去設定啟用或是取消，這造成了使用上地不方便。 為解決此問題，本篇論文針對手機端提出了一種自動的「指定轉接演算法」(Call Forwarding Algorithm；CFA)。 只要在智慧型手機上面安裝一支CFA軟體，在某些事件發生時，例如當手機插上充電器或關機時，即可自動啟用指定轉接這項服務。 而當手機拔除充電器或開機時，則可以自動取消指定轉接這項服務。 此外，我們也從數學分析、模擬實驗與實際測量這三方面來評估「指定轉接演算法」的效能。 我們的評估指出「指定轉接演算法」是可以被實際應用在商業用途上的。

Call forwarding is a traditional telecom service that allows a user to forward incoming calls to another telephone number. This service requires the user to manually activate and deactivate the feature, and therefore may not be very convenient. This paper proposes an automatic Call Forwarding Algorithm (CFA) for mobile phones. By installing a software in a smartphone, call forwarding is automatically triggered (e.g., when the phone is plugged in a charger or is turned off) or disabled (e.g., when the phone is unplugged from the charger or is turned on). We also investigate the performance of CFA through analytic analysis, simulation, and measurement. Our study indicates that CFA is very feasible for commercial usage.