Are there standard approaches to making voip/sip halfway secure (no worse than 2G)? Or do you just have to tunnel/vpn it?
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Replying to @RichFelker
there are (in LTE), but they're not end-to-end. See here for an overview: https://www.troopers.de/wp-content/uploads/2011/10/TR12_TelcoSecDay_Schneider_LTE.pdf …
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Replying to @mfukar
Are these protocols you can use (directly or with a gateway/proxy) with normal sip-based voip providers?
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Replying to @RichFelker @mfukar
Not so concerned about E2E here because normal cell calls don't have E2E anyway. Aim is just "no worse than" normal cell.
11:41 AM - 15 Mar 2017
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