ENCRYPTION
AES-256 ENCRYPTION
356 ENVOY™ TRANSCEIVER REFERENCE MANUAL
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1 Press (Close).
Related links:
Logging in to admin level on page 97
Digital Voice Options on page 257
Selecting the Vocoder data rate on page 354
Digital Voice mute
When the AES-256 digital voice encryptor is switched on, you have the option of
selecting Voice mute (V), Selcall mute (S), or Digital Voice mute (D). Digital Voice
mute enables only digitally encrypted voice to be processed through to the user. Voice
mute enables all clear and encrypted voice detected at your station to be heard by the
user, and Selcall mute blocks all signals except for calls specifically addressed to your
station.
Figure 69: Digital Voice mute indicator
Selecting digital voice mute
NOTE: Digital voice mute is available when the AES-256 digital voice
encryptor is active.
To select digital voice mute:
1 If you are using a 2220 Handset or 2230 Desk Console, press SEC, then
press V/S until D is shown in the centre of the title bar on the channel screen.
1 If you are using a 2221 Handset:
•Press (Options).
• Press or to scroll to the Secure On option.
•Press (Select).
•Press (Options).
• Press or to scroll to the V/S/D option.
•Press (Select).
• Repeat these steps until D is shown in the centre of the title bar on the
channel screen.
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