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You may also need to set Override DNS to use alternate DNS servers from those provided by your carrier.
• To enable Override DNS, check the Override Returned DNS Servers box. Enter the IP of the DNS servers into the spaces
provided.
• Check Apply. A radio connection will be established with your cellular carrier.
5.6.2 Verifying the Cellular Connection
Out-of-band access is enabled by default, so the cellular modem connection should now be on.
• You can verify the connection status from Status: Statistics
o Select the Cellular tab. In Service Availability, verify Mode is set to Online.
o Select Failover & Out-of-Band. The Connection Status should read “Connected”.
o Check your allocated IP address.
• You can measure the received signal strength from the Cellular Statistics page on the Status: Statistics screen. This will
display the current state of the cellular modem, including the Received Signal Strength Indicator (RSSI).
Note: Received Signal Strength Indicator (RSSI) is a measurement of the Radio Frequency (RF) power present in a received radio signal at
the mobile device. It is generally expressed in dBm. The best throughput comes from placing the device in an area with the highest RSSI.
-100 dbm or less = Unacceptable Coverage
-99 dbm to -90 dbm = Weak Coverage
-89 dbm to -70 dbm = Medium to High Coverage
-69 dbm or greater = Strong Coverage
5. Firewall, Failover and OOB Access
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