Setting Encryption Mode - PictureTel Concorde 4500 Administrator's Manual

Setting Encryption Mode

When your system has the internal encryption option installed, you
can conÞgure it to encrypt both dialed and nondialed (dedicated)
videoconferencing calls using either automatic or manual encryption.
If your system doesnÕt have the internal encryption option, you can
also conÞgure your system to use an external cryptographic device,
such as KG-84, for either a dialed or a nondialed network. External
devices offer an even higher level of security and can be used only
with the RS-449 network interface.
The instructions in this section tell you how to use the Set General
ConÞguration menu to conÞgure your system to use internal or
external encryption.
The following basic guidelines apply to using encryption:
The internal encryption option functions only with PictureTel
System 4000
transmission mode.
If you are attempting to make an internally encrypted call,
make sure that your system has H.331 broadcast mode
disabled. If your system is set for internal encryption and for
H.331 broadcast mode, the system either will not complete the
call or will ignore the H.331 broadcast mode and result in a
point-to-point call.
You can use the PictureTel internal encryption option when you
must conform to the Data Encryption Standard (DES) of the
United States National Bureau of Standards. Both your system
and the system you call must have the encryption option
installed.
If you are using an external encryption device, both your
system and the system you call must use identical devices.
Both you and the far end must conÞgure your systems with the
same encryption setting.
You cannot legally export a system with the internal
F.Y.I.
F Y I
encryption option installed from the United States without
the expressed approval of the United States Department of
State. Your PictureTel sales representative can assist you.
™
videoconferencing systems using SG3 video
Setting the ConÞguration
4-5