CTR-TEL not only alerts you when your telephone is being tapped, it also automatically disrupts the telephone tap by emitting a load tone and disrupting the monitoring station or tapping device. The frequency detection is 1 MHz - 6 GHz and is not polarity sensitive, so "Tip and Ring" can have any position on the line...

The FTR-TEL is similar in performance to the CTR-TEL, and will detect a telephone tap, without disrupting the tapping device. The design of this telephone tap detector is a result of over 16 years of grueling research. The FTR-TEL will provide a warning of a telephone tap with both an audible and visual signal...

Siemens S65, changed into an untraceable device, warns you against any interception attempt. Every time you change SIM card, the phone will change automatically its IMEI number. The IMEI numbers are produced by the phone randomly and will never be repeated. Interception of conversations made or received by such a phone becomes an impossible mission...

Through this device it is possible to listen to the voice and comments of caller before answering, without his knowledge, so we can decide whether to answer or not. Simul-Tel has two modes, manual or automatic. Installation is easy, setting it up in series between line and telephone...

The use of wiretapping has become so widespread, simple and uncontrolled that you must assume that records of your private calls end up in the wrong hands. Equipment for wireless interception of mobile phone calls has become available at such low prices that it is deployed frequently even in comparatively small business conflicts. So using encryption to protect your privacy is the prudent choice...

Create a perimeter of noise sound a target area that defeats wired microphones inside walls, contact microphones, audio transmitters located in AC outlets, and laser/microwave reflections from windows...

Now there is a solution that you can trust, because it can be verified by you or by your experts. SCR-TEL, the first secure desktop phone that comes with full source code available for independent review - is available now...