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Specify how the device will Failback from the failover SIM to the Primary SIM. There are two
options:
o The 'On Disconnect' failback option will failback to the Primary SIM only after the
connection on the failover SIM has failed its ping test.
o The 'On Timeout' failback option will failback to the Primary SIM after the connection on
the failover SIM has been up for the timeout period. The timeout period is either the
default value of 600 seconds if the Failback Timeout field is left empty or the number of
seconds you have specified in the Failback Timeout field.
Next, you will need to configure each SIM connection with as much information (eg. APN etc)
such that it will make a successful connection assuming sufficient signal strength from the cell
service provider.
Enter a Failback Test IP address for each SIM. This IP address is used to ping test the status of
the cell modem connection and to determine if SIM failover or failback is to take place.
Configuring DDNS and the Modem Watchdog are optional. DDNS, when configured, will be
applied to the cell modem dial out connection regardless of which SIM is currently in use. Dual
SIM failover is for dial out connections only.
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