Black Box 2010 - Manual (Page 15)

13
USING
Options during a call
You can use a number of additional functions
during a call.
While on a call or listening to messages:
To adjust the volume of speech of the
person you are talking to, press the
VOLUME button situated at the top
left-hand corner of the handset.
The volume will get louder or softer,
depending on the start point, and will
beep twice when it has reached either
the highest or lowest volume setting.
It will then go back the other way.
Press and release the volume button to
increase/decrease for the required level. VOL
VOL
To adjust the handset earpiece
volume (speech)
While on a call, if you wish to talk to
someone close by without the person at
the other end hearing the conversation,
you can use the secrecy function.
During a call:
SEC Select the SEC option.
The display shows SECRECY ON.
This confirms that you have activated
the secrecy function and you can now
talk without the other person at the end
of the line hearing you. You will also hear
a beep every 5 seconds or so.
SEC To allow the caller to hear you again,
select
SEC . You can now resume your
conversation.
To end the call and return to standby,
press
TALK .
To use the secrecy function