28 Apr
2011
28 Apr
'11
2 p.m.
Thank you very much.
A firm from Turkey called Aselsan succeeded to make encrypted conversation over GSM. It transfers the voice data (1.2 kbit/s ) with Synthetic Voice Modulator technology.
http://www.aselsan.com.tr/images/dokuman/HC/AHSPD/kripto/2110/2110_whitepape...