No. Dual SIM gives the router two services to choose from, but reliable failover depends on how the router tests the active connection and when it is told to switch. A SIM can remain registered to a tower while internet access is unusable, so checking only registration or signal strength may not detect a real outage.
The configuration should define health-check targets, failure thresholds, retry timing, preferred SIM, data limits and the conditions for returning to the primary service. It should also account for applications that do not tolerate a public IP change. Test the process by creating realistic faults rather than simply removing a SIM. Comset’s exact menu options vary by model and firmware, so the final failover procedure should follow the current guide for the selected router.
Public Q&A
Does a dual-SIM router automatically provide reliable failover, or does the switching behaviour still need to be configured?
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Use this answer as a practical starting point. Current scope, specifications, compatibility, availability, pricing, timing and next steps should be confirmed directly with Comset where they affect a decision.
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