ZyXEL Communications 91-009-073003B ユーザーズマニュアル

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 Chapter 11 Interfaces
ZyWALL USG 50 User’s Guide
237
11.5  Cellular Configuration Screen (3G)
3G (Third Generation) is a digital, packet-switched wireless technology. Bandwidth 
usage is optimized as multiple users share the same channel and bandwidth is 
only allocated to users when they send data. It allows fast transfer of voice and 
non-voice data and provides broadband Internet access to mobile devices. 
Note: The actual data rate you obtain varies depending on the 3G card you use, the 
signal strength to the service provider’s base station, and so on.
You can configure how the ZyWALL’s 3G device connects to a network (refer to 
): 
• You can set the 3G device to connect only to the home network, which is the 
network to which you are originally subscribed. 
• You can set the 3G device to connect to other networks if the signal strength of 
the home network is too low or it is unavailable. 
OK
Click OK to save your changes back to the ZyWALL.
Cancel
Click Cancel to exit this screen without saving.
Table 58   Configuration > Network > Interface > PPP > Add (continued)
LABEL
DESCRIPTION