| 「雙音辨號」 Duplex Ringing |
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| 「雙音辨號」功能為用戶提供2個號碼，而2個號碼會有不同的鈴聲，讓用戶能輕易分辨來電者撥用那個號碼，例如分辨話音或是傳真等。 "Duplex Ringning" provides you 2 different telephone numbers for a single telephone line. The ringing tone of the 2 numbers are different which allow you to distinguish the nature of calls. e.g. phone or fax calls. |
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