2. Digital GSM cell phone interceptor: This listening device is mostly used by commercial spies and other professional evidence gathering and listening personnel. The application scope covers a wide range, including: specific number locking listening, intercepting calls, SMS, audio locking (change the number is useless because the audio is locked), specific area scanning call content....
3. Spy Satellite Listening: Specific national military-grade listening methods, powerful, mostly used in national security systems, any anti-surveillance equipment can not be detected.
4. Listening to cell phones: Currently, the general public has access to a listening tool, a chip implant and a soft implant in two ways, the implanted software is different from the previous chip listening technology, in the cell phone will not leave any information, the installation of a fast, powerful, listening to the phone does not ring, does not vibrate, the current anti-surveillance equipment can not be effectively detected.
How can I tell if my phone is being tapped?
If you're being bugged by the 1.2.3. method above, it's basically unnoticeable (the state wants to bug you, so what can you do...). What can you do? ==), but there is a way to cure the problem, which is to change your cell phone! If you talk to a particular person does not want to be eavesdropped on, the two sides of the two people at the same time have a confidential cell phone, with this confidential cell phone conversation will not be eavesdropped on, but it is necessary to have the same encryption and decryption of the two sides of the cell phone to be able to do so, seems to be a problem, but is the cell phone to prevent eavesdropping on the most effective way.
The fourth method above is the general market about 90% of the usual cell phone listening trick, but in the listening before, need some preparation, these preparations will be down to the "eavesdropper" now prototype, that is, a small crack, but need to pay attention to the daily life of the small place oh!