COBHAM AVIATOR 200, User Manual

Page: 51 / 126

Chapter 3: Operation
AVIATOR Wireless Handset functions 41
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Oper
ation
To configure the AVIATOR Wireless Handset do as follows:
1. Make a SIP profile using the SIP account details SIP server, user name
and password. For instructions see To add a new SIP profile on page 72.
2. Select
SIP
from the main menu, then select the new SIP profile you
want to use for communication.
3. Select
Connect
. The handset registers itself, and you are ready to make
a secure call.
Typically you make the call and then go into secure mode by selecting
Go
secure
in the menu
Main options
. You can go into secure mode anytime
during a call. When using the AVIATOR Wireless Handset in networks where
all calls must be secure, you can set the handset to start a secure session
automatically each time when a call is initiated and the peer AVIATOR
Wireless Handset goes off-hook. For further details see
To set call
services (Noise cancellation and Automatic secure)
on page 62
.
To make a secure call
1. To make a secure call, type the phone
number and press or
#
.
2. To go secure, the caller or the person
called presses
Main options,
then
Go
secure
to initiate a secure session
.
Then the display shows
Going secure
.
The encryption keys are negotiated, the
peer is authenticated and the voice
streaming is en- and decrypted.
The key negotiation may take up to 30
seconds. During this period, voice is
muted.