User's Manual

ENCRYPTION
CES-128 VOICE ENCRYPTION
300 ENVOY™ TRANSCEIVER REFERENCE MANUAL
Using secure standby
Secure standby mode available with the CES-128 voice encryptor only. It is accessed
via secure mode.
To use secure standby mode:
 Switch on secure mode.
 If you are using a 2220 Handset or 2230 Desk Console, press to go to secure
standby mode.
 If you are using a 2221 Handset, do the following to go to secure standby mode:
• Press (Options).
• Press or to scroll to the Standby On option.
• Press (Select).
 If you are using a 2220 Handset or 2230 Desk Console, press to go to exit
secure standby mode and return to secure mode.
 If you are using a 2221 Handset, do the following to go to exit secure standby
mode and return to secure mode:
• Press (Options).
• Press or to scroll to the Standby Off option.
• Press (Select).
Related links:
Switching the encryptor on or off on page 101
Setting the duration of secure standby for a Selcall HF network
If your HF communication network operates with the Codan Selcall call system, you
will not hear revertives from the called station when secure mode is active. You can
set a brief period following a call made in a Codan Selcall HF network during which
the transceiver enters secure standby, listens for revertives, then returns to secure
mode.