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Secured video conference can be solved by not letting your meeting connected to non-secure telephone lines.
For secured video conference an expert and certified technician can secure your lines.
Video conferencing is indeed the best and vital tool for business communication; it helps in conducting meetings and sharing ideas and information to other parties located in other parts of the world. However, many people do not know if their conferences are safe from spies or their conferences are cross connected with some other citizen's telephone lines.
There are solutions to have secure video conferences without the fear of your private conversations and do not let you be afraid of your confidential information leaked out.
First solution is the encryption box, with the encryption box in place on the video/audio/data line, the only thing that needs to be secured is the dialing line. There are two options for securing the dialing line:
Dialing from the IMUX:
One way to get a secured video conference and not letting your meeting go around the security weakness associated with the dialing line is to bypass the dialing line entirely. For this solution a properly trained and certified technician can dial and initiate video-conference calls directly from the IMUX itself, and to do this, the technician might have to disconnect and reconnect cables, sometimes located in remote areas. This solution effectively secures video conferencing system but needs time and special expertise to switch from non-secure to secure and vice versa.
Dialing from the CODEC Menu Using an Optical Dial Isolator:
After some practical responses, it's quicker and easier to initiate and dial both secure and insecure calls from the video conferencing CODEC's on-screen menu rather than having to rewire the IMUX every time.
The problem to face is that the copper wire used in the dialing line produces data radiation levels that don't comply with the military's TEMPEST security standards. With the right equipment, however, it's possible to eliminate the data radiation problem without getting rid of the dialing line altogether.
This piece of equipment is called an optical dial isolator. Instead of transmitting data over a copper wire, the optical dial isolator uses fiber-optic cables that convert data into optical light streams that emit no data radiation at all. The isolator needs to be installed between the CODEC and the IMUX on the dialing line.
Using an optical dial isolator makes it easy for organizations like the government or the military to easily switch back and forth between unsecure and secure video conference calls directly from the CODEC's on-screen menu. And with an encryption box already in place on the video/audio/data line, the video conferencing setup is now completely secure.