Ericsson 230i Manuale Utente

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The handset also generates audible ring signals, alarm signals, warning tones 
and key clicks.
Base station. 
The base station also generates ring signals.
Handset and base station functions can be accessed via the handset menus. 
The chart below gives an overview of the menu options to help you locate 
those functions.
The standby menu is accessible when the handset is in standby mode by press-
ing 
U P
 or 
D O W N
Sound
Meaning
Ring signal
Incoming call.
Alarm signal
4 short beeps every 30 seconds: battery almost 
empty.
4 short beeps every 2 minutes: handset out of range 
or not connected.
Key click
You hear this each time you press a key (when 
selected).
Warning tone
You have pressed a key which has no function.
Signal
Meaning
Green bottom light
On: charging handset battery.
Red top light
On: an external line is engaged or subscription mode 
active.
Flashes: incoming external call.
Flashes quickly: no connection to external line.
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