Accelerated 6310-DX, User Manual, Page: 68 / 235

Carrier (SIM) Smart Select Carrier (SIM) Smart Select
Goal Goal
To use the 6310-DX's dual SIM modem to provide internet connectivity with one SIM, and
failover to the other SIM slot if the first SIM's connection dies.
Setup Setup
For this setup, you will need two SIM cards enabled, provisioned, and installed in the 6310-DX's
pluggable cellular modem's SIM slots. The two SIM cards can be from the same provider (e.g.
two Verizon SIMs), or can be from different carriers.

Note: Note: If one of the SIM cards requires a custom or unique APN, you will need to add this APN into the
6310-DXs configuration, under the
Modem -> Modem -> APN APN option.
Sample Sample
By default, the 6310-DX is setup for automatic SIM selection. Meaning, if the 6310-DX is unable
to connect with the SIM in slot 1, after a specified number of failures the 6310-DX will
automatically switch to use the SIM in slot 2.
We will leverage this automatic SIM failover, along with a connectivity monitor, to setup the
6310-DX to failover between SIM cards if either SIM is unable to establish a cellular connection.
In the sample configuration below, the 6310-DX is setup to test the cellular network connection
once every two minutes. If three sequential tests fail, then the 6310-DX will restart the cellular
connection, attempting to connect with the same SIM card. If the SIM card fails to connect after
five attempts (each attempt takes from 10-30 seconds), the 6310-DX will switch to the
secondary SIM slot.
Summed up, if a SIM's cellular connection fails, with the below configuration the 6310-DX will
failover to the secondary SIM in under 10 minutes.
Sample Configuration Sample Configuration
Open the configuration profile for the 6310-DX and make the following changes. Under
Modem Modem , set the following options.
• Active SIM slot: Active SIM slot: Automatic
• Automatic SIM selection connection attempts: Automatic SIM selection connection attempts: 5
User Manual
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