Secure AES encypted live audio
...over ISDN lines or any IP network

For your ears only!
Live, 2-way audio over ISDN or IP using AES encryption standards - for secure communications...


About Secure AudioTX products

Secure AudioTX IP... for Live IP audio over IP Networks

Secure AudioTX ISDN for live audio over ISDN lines

Hardware & PC requirements

Demo version request


Contact us



Secure AudioTX ISDN... for your ears only...

Secure AudioTX IP allows you to send and receive LIVE audio over ISDN Lines. AES government standard encryption is used on the link, ensuring that your private conversations stay private.

Secure AudioTX ISDN

  • Live bi-directional or uni-directional audio over ISDN lines
  • Your audio is encrypted using the US Government approved AES algorithm for high-security
  • Uses standard Windows sound cards and one of our approved ISDN cards
  • Key manager keeps your encryption keys safe and allows you to refer to them easily by name
  • Phonebook with unlimited entries



  • Works at bitrates of 64kbps (one b-channel) or 128kbps (2 b-channels).
  • Audio is coded using MPEG 2 or 3
  • Professional quality audio - up to 20khz audio bandwidth
  • Low delay of 90ms - dependent on ISDN line and coding algorithm selected.


Built in keyring manager allows you to easily manage a number of individual 256-bit encryption keys - so you can just refer to them by a name...



Keys can be generated from a passphrase, randomly or entered by hand...

Secure AudioTX ISDN...

Secure AES encrypted audio transmission
over ISDN Lines

Remote Monitoring/Surveillance IP Telephony
Private Communications Government and Law enforcement


About Secure AudioTX        IP Network version         ISDN version
Hardware requirements       Request Demo       Pricing       Contact us