21MD Evolution – Dialog 4422 IP Office
Logging In and Logging off Your Extension
SOS Emergency Call
From a locked IP extension, it is possible to place an SOS
emergency call. To do this from an extension that is logged off,
after lifting the handset:
SOS NO z Dial the specified emergency number.
 Press the Loudspeaker key on your extension.
An SOS call is placed to the specified internal or external number
that is valid for all IP extensions in your facility. By default, number 9
will contact the attendants (or their substitutes) on your facility.
For SOS calls, dial 9
Log on with: 405
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