Once activated and registered on the network at least once, do SIM cards have do anything each month to remain active? I have customers who turn of their devices for months at a time, so this would be a big problem for me…
Leave it on. There will be a minimum charge ($ pennies) to maintain your SIM card active.
I had been using Hologram SIM cards for almost 2 years now, no data sent then no charge.
Louie
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Great, thank you, that confirms what I’ve seen.
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