You can run an instant messaging client on your phone, and even a protocol as bloated as XMPP works out to be a fraction of the cost per message of SMS.

你可以在你的手机上运行一个即时通讯软件，即便是XMPP这样臃肿的协议算下来其成本也只是短信费用的一部分。

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The company will also integrate instant-messaging and SMS into the main Yahoo Mail in-box, and let Facebook and Twitter users see updates on the landing page for Yahoo Mail.

公司还将把即时消息和手机短信功能整合到雅虎邮件的主收件箱里，并让Facebook和Twitter用户在雅虎邮件的登录页看到更新。

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These include emails, SMS texts, instant messaging, multimedia messages and other mobile phone messaging.

这样的讯息包括电子邮件、手机短信、即时或多媒体留言，以及其它移动电话留言。

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It can send a message to all message addresses (phone number, e-mail address, instant messaging screen name) for all message types (voicemail, e-mail, instant message, SMS, MMS, fax).

FORBES: Magazine Article

Cellular conversations, instant messaging, SMS and use of social media are part of our daily communications and will be subject to recording and monitoring in the financial industry.

FORBES: All Phone Calls With Brokers In The UK Now Recorded; Coming Soon To Europe and America

So far, AOL has struck deals to deliver instant messaging via SMS with two network operators, VoiceStream Wireless in the United States and Hutchison Telecommunications in Hong Kong, according to Jon Eric Bylin, senior product manager at America Online's AOL Mobile division.

CNN: AOL brings instant messenger to mobile phones