视频呼叫就是在通知方发起呼叫后，被指定的某一个网点或者众多网点，同时得到视频和语音信息。被呼叫方不需要操作，只要设置允许规则，就可以自动被呼叫起来。
我们都知道，现在可以通过电脑进行视频呼叫；而这当中最具竞争力的两个家就是 iChat 和 Skype.
As we know, it’s already possible to video call on a computer; iChat and Skype are two of the bigger contenders in this field.
在近一个小时的连续呼叫测试中，语音质量良好，信号稳定，而EVDO的在线视频播放，数据平滑稳定。
During nearly one hour of continuous call testing, the voice service demonstrated good quality and stable signals, while the EVDO data service smoothly and steadily play online videos.
Skype同样表示将通过增值业务，比如群组视频聊天，来扩展使用付费语音呼叫和视频聊天的用户。
Skype also says it plans to grow the number of consumers paying for its voice calling and video chat by adding more premium features, such as group video chat.
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