The GSMK CryptoPhone PSTN/1 is a secure desktop phone that connects to the public switched telephone network and comes with full source code available for independent review.

• Secures your voice's privacy
• Strongest and most secure algorithms available today
• AES256 and Twofish
• 4096 bit Diffie-Hellman key exchange with SHA256 hash function
• Readout-hash based key authentication
• 256 bit effective key length
• Encryption key is destroyed as soon as the call ends
• Source code available online for independent security assessments
• Standard analog PSTN/POTS interface with RJ11/RJ13 plug
• Audio port for interfacing the PSTN/1 with videoconferencing equipment
• Integrated interface for connection to Thuraya or Inmarsat satellite terminals

Download the CryptoPhone video:   MPG or WMF

The full source code of the GSMK CryptoPhone