Privacy

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How to carrier level block all calls and texts to a phone number, to only allow data, to force others to use Signal? (lemmy.world)

submitted 1 month ago* (last edited 1 month ago) by autonomoususer@lemmy.world to c/privacy@lemmy.ml

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Not just locally on the device! There must be an error when calling or texting the number.

Data must work for internet for Signal, VoIP, etc.

This is for a UK PAYG SIM.

There should be no way for anyone to demand my number, or for me to leak it, or doing so should be irrelevant as it does not work.

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[–] ExcessShiv@lemmy.dbzer0.com 7 points 1 month ago (1 children)

AFAIK this is not possible for a working number. Failed dial tone and "text message not delivered" are handled on the carrier level, if you block a number then they'll just get a "busy" tone when calling and nothing when texting. You can't blanket reject everything while retaining data, unless you disconnect from cellular and only use WiFi.

[–] BearOfaTime@lemm.ee 3 points 1 month ago (2 children)

Yet Another Call Blocker does block all calls, that is my phone never rings, and I never see any notification of a call.

[–] ExcessShiv@lemmy.dbzer0.com 3 points 1 month ago* (last edited 1 month ago)

Yeah but like I said, anyone who calls you will just hear the "busy" tone or direct to voicemail. They won't get the "invalid number" tone like OP wants.

[–] PlasticExistence@lemmy.world 2 points 1 month ago

That's doing that locally on your device, not on the carrier network. It's definitely a good solution for this problem though.