有一点很重要，那就是要使用零调制解调器电缆，如果您使用普通的串行电缆，目标计算机则期望与串行设备通信，而不是与另一个串行端口通信，这样您就无法调试该计算机。
It is important that you use a null modem cable; if you use a typical serial cable, the target computer expects a serial device and not another serial port, and you cannot debug the computer.
GPRS设备类似于拥有扩展AT命令集的调制解调器，在进入数据模式之前必须使用AT命令定义一个上下文。
A GPRS device, which resembles a modem with an extended at command set, must define a context using an at command before it enters data mode.
大部分的游戏平台都支持WiFi连接，你可以很容易地使用便携式调制解调器与5到8个(视你购买的调节解调器而定)不同的设备分享4g连接。
Since most gaming platforms have Wi-Fi connectivity built in, you can easily use the portable modem to share a 4g connection with five to eight different devices (depending on which modem you buy).
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