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现在就购买56Kbps Modem,这将是一件冒险的事。即使在购买时非常小心仔细,你应该明白所购买的56Kbps产品的速度并不能达到28.8Kbps Modem的两倍,传送文件的速度并不比33.6Kbps的Modem快多少;你也许还会遇到其他一些问题,比如你喜爱的Internet服务提供商(ISP)可能不支持你的Modem所使用的协议(如X2或K56flex协议)。也就是说,一个使用X2协议的56Kbps Modem要拨号进入只支持K56flex协议的服务器时,一点也不会比33.6Kbps的Modem快。再者,你目前的电话线有可能不支持更高的速度。还有一件值得担心的事是,尽管销售商在Modem升级方面有着各种承诺,但在56Kbps标准最终出台时,你还是有可能得不到真正的56Kbps速度。
It’s a risky thing to buy a 56Kbps modem now. Even when you’re careful about what you buy, you should understand that the 56Kbps product you buy does not get twice as fast as the 28.8Kbps Modem and does not send files much faster than the 33.6Kbps Modem; you may encounter other problems as well , Such as your favorite Internet service provider (ISP) may not support the protocol your modem uses (such as the X2 or K56flex protocol). That is, a 56Kbps Modem using X2 protocol will not be faster than a 33.6Kbps Modem to dial in to a server that supports only the K56flex protocol. Again, your current phone line may not support higher speeds. One more thing to worry about is that despite all the promises Vendors have on Modem upgrades, you may still not get a true 56Kbps when the 56Kbps standard is finally available.