hide tethering from network

what's the most reliable way to use the wireless hotspot on the s6 edge without the network knowing, in the uk? there seems to be a multitude of methods available, and little consensus about how exactly networks detect tethering.

I know I've asked a relatively similar question in general Q&A, but I was genuinely hoping to get a general discussion about how cyanogenmod hides tethering, right now I would just like to know specifically what uk S6 edge users have found is reliable. thanks :)

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