SETTINGS
RINGER:
Rhythm and volume:
1.press 
and keep it pressed until after about one second the symbol
comes in the display
2.press button 1, 2 or 3 to select another rhythm (you can hear this rhythm through the speaker)
3.repeatedly press 
to select the desired level (you can hear this level through the speaker)
when the display shows 
, the ringer is set to OFF
4.press 
to store the selected rhythm and volume
Shortcut to Turn Ringer On/Off:
You can turn on/off the ringer by pressing and holding ∗ in standby mode. The symbol 
will turn on when the ringer is turned off. When the ringer is turned on using this shortcut method, the ringer volume will be set to medium.
FLASHTIME:
1.press 
and keep it pressed until after about one second the symbol 
comes in the display
2.- press button R, and button 1 to select a flashtime of 100mS (this is the default setting)
- press button R, and button 2 to select a flashtime of 300mS
3.press 
to store the selected flashtime
SYSTEM FAILURE
In case of a possible system failure, please remove the
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