如果你手机电池电量不足，发送短信到你的紧急联系人， 这需要更少的电量，能够通过比语音电话更弱的连接传输信号。

If your battery is low, send a text message to youremergency contact, which requires less power and can transmit over aweaker connection than a voice call.

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由于宽带连接能够传输语音和数据，一些国家(譬如智利)就开始为铺设宽带提供资金，而不是仅仅着眼于电话。

Since broadband links can carry both voice and data, some countries (such as Chile) are starting to subsidise broadband roll-out instead of just concentrating on phones.

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印度的经验表明，在语音通话昂贵且互联网连接稀缺的地区，企业家更愿意使用基于文本的短信服务。

The experience of India shows that in places where voice calls are expensive and Internet connections rare, entrepreneurs gravitate to text-based messaging.

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