论文部分内容阅读
国内的手机资费虽然一降再降,但比起电脑上的网络电话,价格还是高。如果能够把网络电话的实惠和手机的方便结合起来,
Although the domestic mobile phone tariffs drop lower and lower, but compared to the Internet phone on the computer, the price is still high. If you can afford the benefits of VoIP and cell phone convenience together,