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MWI switch
The MWI switch is used to switch between the different Message Waiting Indicators
of a telecommunication system (see also Page 19, "Message waiting indicator").
The switch must be in position SR when using the phone on a public line.
SR:
MWI is enabled with a special ring tone
HV:
MWI is enabled with line voltages greater than 70V
PR1:
MWI is enabled via the line polarity
PR2:
As PR1 but with reversed polarity
Getting started
11
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