They can send and receive messages through mobile phones as text messages or through E-mail.

VOA: special.2009.02.06

So, I wrote some very simple software to receive an email from my BlackBerry and then send it out to an email list of some people I put on that list, with my friends and my family on it.

所以我编写一些很简单的软件,来接收我的黑莓手机发来的邮件,然后将其转发给一个邮件列表，这个列表上有我的朋友和家人。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

This electrical machine could send and receive "beeps" and other sounds over a wire.

VOA: special.2010.05.14