That's correct. You can't mix without decrypting. Signal does not mix at the server because it can't. More info is available at my blog post about it: https:

That's correct. You can't mix without decrypting. Signal does not mix at the server because it can't. More info is available at my blog post about it: https://signal.org/blog/how-to-build-encrypted-group-calls/ https://signal.org/blog/how-to-build-encrypted-group-calls/