B&B Electronics RT3G-300_310_320_330_340-W - Configuration Manual - Manual (Page 30)

B&B Electronics, Inc. SPECTRE Configuration Manual
30
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A configuration example for checking the PPP connection is shown in Figure 19. The
router will monitor the traffic over the PPP connection. When the router is using SIM card 1, it
will ping address 8.8.8.8 if there is no receive traffic on the PPP connection for 60s. If the
router is using the secondary SIM card, it will ping
www.google.com after 80 seconds of
inactivity on the PPP link.
Fig. 19: Example of GPRS configuration 1
Figure 20 shows an example of how to configure the router to automatically switch to
the backup SIM card when it exceeds the data limit of 800MB in the billing period. It will send
out a warning SMS message when 400MB of data have been transmitted. The billing period
begins on the 18th day of the month.
Fig. 20: Example of GPRS configuration 2
Example: Configuring the router to switch to offline mode when it detects that it is
roaming. The first attempt to switch back to the default SIM card is made after 60 minutes,
the second after 40 minutes, the third after 50 minutes (40 +10)...
Fig. 21: Example of GPRS configuration 3