viber
朋友介绍我下载了个免费iphone软件viber，可以在iphone间免费打国际长途和发短信，有iphone的可以试试。
Source: http://nteswjq.blog.163.com/blog/static/1269981201164656856/
Viber
> By Duan Yongping · his NetEase blog (nteswjq.blog.163.com, now closed; read from web archives) · 2011-07-04 · [Original link](http://nteswjq.blog.163.com/blog/static/1269981201164656856/) ([archived](https://web.archive.org/web/20110718010021/http://nteswjq.blog.163.com/blog/static/1269981201164656856/))
A friend got me to download a free iPhone app, Viber, which lets you make international calls and send texts between iPhones for free. Those with iPhones can give it a try.
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