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Fabio Pietrosanti (naif) lists at infosecurity.chOn 4/27/11 11:41 PM, Huseyin Turan wrote: > Hi; > > With this way is it possible to encrypt the voice data peer to peer with > my own encryption algorithm? > > Thank in advance. There has been a discussion thread here with some ideas: http://lists.osmocom.org/pipermail/baseband-devel/2011-January/001004.html http://lists.osmocom.org/pipermail/baseband-devel/2011-January/000998.html Then anybody tried to verify if calls within the same network doesn't get transcoded and so the AMR or GSM-EFR payload into the GSM frame is still intact? I mean trying to setup the simple XOR of every AMR frame payload between two phones? IMHO it should work because the network operators are not going to transcode voice flow when it's not needed (if caller and called speak the same audio codec and they are within the same gsm network). Turan, if you are going to make some testing it would be cool! -naif