The service includes caller ID, voice mail, and call waiting.

这项服务包括呼叫方身份识别、语音邮件和呼叫等待。

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For example, consider a voice application that begins by asking for a user ID number and a PIN (like most banking or financial applications do today).

例如，考虑一个语音应用程序，从询问用户 ID 号和 PIN 开始（与当今的大多数银行或金融应用程序类似）。

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If you are a Google voice user, your Google voice number will appear as the outbound called ID number on calls made from Gmail.

voice号码将显示为你所使用的gmail的ID号码。

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This number not your Apple user ID or email address represents you as far as Siri's back-end voice analysis system is concerned.

CNN: Apple reveals how long Siri keeps your data