若非必要，不要使用电话的免提功能。

Don't use a speaker phone unless absolutely necessary.

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福特sync界面集成了免提电话、娱乐和语音识别功能。

Many Ford customers were dissatisfied with its vaunted Sync interface that integrates hand-free telephony, entertainment and voice-recognition.

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耳机同时支持免提及耳机功能。拨打电话功能取决于您的手机的相应功能。

Your headset supports both Handsfree and headset Profiles. Accessing call functions depends on which profile your phone supports.

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