Comfort Automation/ Security System Forums

Full Version: Can SIM be safely swapped with power on?
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Hi,
I have a UCM/GSM4 3G model.  I need to experiment with a SIM from a different provider. Is it safe to remove and re-insert a SIM whilst Comfort is powered-up or do I need to power down?
I beleive it is not recommended, but we often swap SIM cards without powering down! And we have not had any problems