A very useful function for seeking the subscriber, it allows calling to several extensions and external telephone numbers – to any place of the world. This function allows users to be available on several devices, such as cell phone, home phone, office telephone or soft phone. In other words, when someone calls you, this call will reach all your communication means.
The great Tang Dynasty is one of the most splendid period in Chinese history.Datang Telecom Technology and Industry Group,with headquarter located in Beijing(capital of china),services nation wide,and is ambitious for whole world at the same time.It is de
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