Can the camera be operated with a (prepaid) SIM card from any mobile phone provider? " icuserver support centre

No, the cameras are set to the SIM card supplied in order to rule out installation problems (e.g. entering the correct APN parameters, etc.).
The use of the SIM card supplied covers all costs for the use of the specially developed mobile phone app and the use of all Internet services.

These Internet services include image viewing, password management and merging several cameras in one account, camera sharing, etc.

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