ZyXEL Communications ISG50-ISDN User Manual page 110

Chapter 7 General Tutorials
Figure 76 Configuration > Network > Interface > Cellular > Edit
Note: The Network Selection is set to Auto by default. This means that the 3G USB
modem may connect to another 3G network when your service provider is not in
range or when necessary. Select Home to have the 3G device connect only to your
home network or local service provider. This prevents you from being charged
using the rate of a different ISP.
Go to the Dashboard. The Interface Status Summary section should contain a "cellular" entry.
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When its connection status is Connected you can use the 3G connection to access the Internet.
Figure 77 Status
The ISG50 automatically adds the cellular interface to the system default WAN trunk. If the ISG50
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is using a user-configured trunk as its default trunk and you want this cellular interface to be part of
it, use the Trunk screens to add it.
This way the ISG50 can automatically balance the traffic load amongst the available WAN
connections to enhance overall network throughput. Plus, if a WAN connection goes down, the
ISG50 still sends traffic through the remaining WAN connections. For a simple test, disconnect all of
the ISG50's wired WAN connections. If you can still access the Internet, your cellular interface is
properly configured and your cellular device is working.
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ISG50 User's Guide