You have likely seen a movie where spies sneak into an office and plant recording devices or bugs so they can listen in on important conversations. Due to the advances in communications technology it is no longer necessary for someone to go through that much work to listen in on your conversations.
Most people do not realize that acoustic signals can be picked up by a phone that is on hook, with no need for any special eavesdropping devices. Without special design considerations, these signals can be detected on the phone lines that leave the room.
While millions of dollars are spent annually to make sure conversations made over the phone are encrypted, surprisingly none of that effort prevents eavesdropping on the conversations you have in the proximity of your phone when it is not in use.
TSG-6 technology eliminates the possibility of your phone being used as a listening device by malicious actors.
The U.S. Intelligence Community created the National Telephone Security Working Group (NTSWG) to be the primary technical and policy resource for all aspects of the technical surveillance countermeasures (TSCM) program involving telephone systems.
This group created the TSG-6 certification to be assigned only to communications equipment which meets their stringent standards of not being able to be compromised as listening devices.
TSG-6 certified equipment from Teo complies with the DCID directive for Sensitive Compartmented Information Facilities (SCIF) and JAFAN directive for Special Access Program Facilities (SAPF).
Now you can use advanced VoIP technology in TSG-6 on-hook secure applications. Certified by the Committee on National Security Systems (CNSS), Teo TSG-6 on-hook secure IP phones are available for deployment in SCIF (Sensitive Compartmented Information Facility) and SAPF (Special Access Program Facility) secure areas. Teo TSG-6 IP phones are designed to work with all VoIP platforms that support industry-standard SIP protocol.
The 6220T-TSG-DD and 6220U-TSG-DD are on-hook secure versions of the 6220 ISDN Telephone. These models meet the requirements for TSG-6 certification set by the National Telecommunications Security Working Group. All appropriate electronic circuitry has been modified to ensure the 6220-TSG models meet TSG-6 on-hook security measures.
The NT1B-300TC-TSG is a specially designed version of the Teo NT1B-300TC compact ISDN Network Termination. This model has been certified by the National Telecommunications Security Working Group (NTSWG) for use in standalone applications with TSG-6 approved S/T interface ISDN terminals, such as the L-3 Communication Systems STE, or the Teo TSG-6 ISDN Phone 6220T-TSG, where the NT1 is collocated within the SCIF (Sensitive Compartmented Information Facility) area.