24
2 Setup
DMS3-CTC-25-282 v1.0
2.5 Setting up a mobile fall-back WAN connection
Mobile fall-back
The TG789vac v2 allows you to use a mobile Internet connection (for example, 3G) as fall-back connection for your Internet
access. This means that the TG789vac v2 will automatically switch to the mobile Internet connection when your normal
Internet connection is down.
The TG789vac v2 will automatically switch back to the normal Internet connection as soon as it becomes available again.
What do I need?
To set up mobile fall-back connection, you need:
• A mobile USB adapter
• A registered Security Identity Module (SIM) card.
Configure the mobile interface as WAN connection
Proceed as follows:
1
Configure your mobile connection.
For more information, see
“2.5.1 Managing your mobile connection with the TG789vac v2 GUI” on page 25
.
2
Insert your mobile USB adapter.
For more information, see
“2.5.2 Inserting a mobile USB adapter” on page 26
3
Now your mobile connection is up and ready to use.
Result
TG789vac v2 will automatically enable your mobile Internet connection when
both
of the following conditions are met:
• The main Internet connection has been unavailable for at least 60 seconds.
• The TG789vac v2 received a request to access the Internet (for example, when browsing to an Internet website).
The TG789vac v2 will automatically disable the mobile Internet connection in
either
of the following cases:
• The main Internet connection is available again. In this case the TG789vac v2 switches back to the main Internet
connection.
• No Internet traffic has been detected during the last 10 seconds. For example, you finished surfing the Internet.
Only use the mobile USB adapters provided by your service provider.
If you need to remove your mobile USB adapter, make sure the TG789vac v2 is powered off first.
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