TopSec GSM
The mobile phone for your confidential calls
Characteristics
The TopSec GSM is suitable for encrypted end-to-end voice communication in the GSM frequency ranges of 900 MHz and 1800 MHz. A confidential discussion can either be carried on between two TopSec GSM mobile phones. Or encrypted calls can be made from the TopSec GSM to the landline network: the only prerequisite is that the called ISDN station must be protected by a TopSec 703+ of the TopSec product family. As a matter of course it is also possible to communicate with every subscriber in the normal unencrypted way.
