Is it even possible on android? Is there a FOSS dialer to optionally encrypt some phone calls (non voip) using a pre-shared key with other party?
Is it even possible on android? Is there a FOSS dialer to optionally encrypt some phone calls (non voip) using a pre-shared key with other party?
Can’t the signal be encrypted first by client and then sent to cellular network?
With audio encryption hardware, sure. Speak into that and feed its output to the mic on the phone
do you know of any purchasable equipment? I’ve never been able to find any, then again I’m not versed in such things too much
I don’t myself. So I am not sure.
Yeah third party apps can do end to end encryption. It uses the data network and not the cellular network then though.
Google Fi on Android actually does run E2E on calls https://fi.google.com/about/end-to-end-encrypted-calls/