4
to provide the added benefit of affordable secure communication out-
side of your GSM coverage area. A CryptoPhone solution for Inmarsat
M4 satellite terminals is also available for operations outside of GSM or
Thuraya coverage.
Changing the volume
To change the audio volume during a Secure Call, use the volume con-
trol buttons on the left side of the lid. An on-screen indicator will pro-
vide you with visual feedback regarding the volume you set.
The CryptoPhone G10i volume can be changed over a very wide range
to accomodate for different sound characteristics of the CryptoPhone
the other party uses. Beyond the normal audio levels, additional levels
provide an extra boost of volume. They are marked blue in the volume
indicator.
Note: using the blue audio levels may cause the sound to be
very loud. Please use with care.
Mute during call
To mute the microphone during a call, press the softkey labeled “Mute”.
To switch the microphone back on again, press the softkey again.
