I received a email from Silentel, s.r.o. in Slovakia with information about their novel new product designed to protect GSM cell phone calls against eavesdropping. Interesting concept...
You provide the phone (any standard Smartphone using the Symbian OS). They provide the software and a hardware module with headset (pictured). The hardware connects to your cell phone using Bluetooth! Cool concept. Looks portable and covert.
Here is what they say...
"Silentel SecureCall is a system that encrypts your call through the GSM mobile phone and absolutely thwarts its tapping. Encryption uses the AES 256 algorithm which is currently the highest security standard worldwide. It is the system with the end-to-end security. The whole conversation from one user to the other is encrypted." (more)
