The NSK 200 GSM/DECT handset. Approved for NATO SECRET. ‘Cause it’s encrypted and has an upside down aerial. Yes it’s old-ish, but it’s important to know about super secret upside down stuff. Really it is.
NSK 200 is a secure GSM/DECT phone approved for NATO SECRET. The NSK 200 provides end-to-end security based on strong encryption. The transparent data channel of the GSM or DECT system is used for transmission. Plaintext calls are made through the ordinary voice channel.