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The grand parent was talking about a faraday cage build into the house. That only stops wireless communication so I'm guessing he's talking about devices that u

The grand parent was talking about a faraday cage build into the house. That only stops wireless communication so I'm guessing he's talking about devices that use the mobile network to phone home. So no, it's not possible to let some things through. Not even your phone will get a connection. (Besides the ones that originate inside the house, like wlan)

Chris2048 6y ago
transceiver relays on both sides, connected by a wire could maybe allow this.
Arrath 6y ago
Something like a micro-cell tower inside the house hooked up to the wired connection, with explicit black/white listing for the devices you do or don't want?