6.10 SIM Card End-to-End Encryption
• Call initiated on CH2 is heard on CH1.
• Call initiated on any CH is heard on both control heads.
6.10 SIM Card End-to-End Encryption
The table below presents interactions occurring between radios with and without SIM card. SIM card provides
End-to-End Encryption.
Table 6-1
Radios Interactions
Transmission Type
Transmitting Radio
Receiving Radio
Result
Private Call
SIM card
No SIM card
Call is not visible for the receiving
radio. The transmitting radio
displays
Called Party Clear Only
message.
Private Call
No SIM card
SIM card
Warning: clear call
message
appears and the call is received.
Group Call
SIM card
No SIM card
Call is not visible for the receiving
radio.
Group Call
No SIM card
SIM card
Warning: clear call
message
appears and the call is received.
Message
SIM card
No SIM card
Delivery failed
notification
appears and the message is not
received.
Message
No SIM card
SIM card
Message is received.
To send a message or call a non-SIM card radio, turn off the SIM card End-to-End Encryption.
6.11 RUA/RUI
Radio User Assignment (RUA) and Radio User Identity (RUI) enables authentication service. Only the successful
logon on any temporary radio, provides the full access and your permanent radio functionality, so you can be still
reached with your permanent number. A logon failure results in limited service.
You can differentiate the RUA/RUI state by the interface color:
• Blue — you are logged on
• Gray — you are logged off
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6-7