IP PHONE FOR MX-ONE™
49 6/1553-DBC 434 01 Uen C 2010-12-17
This section describes how to make emergency calls in different phone 
modes.
5.3.1  The Phone Is Logged On
• Dial the emergency number (SOS number). 
Wait for answer.
5.3.2  The Phone Is Logged Off, With Emergency Call Feature 
Enabled
When the emergency call feature is enabled, you can make emergency 
calls even when the phone is logged off.
When the emergency call feature is enabled the display looks like this:
• Dial the emergency number (SOS number). 
Wait for answer.
When the emergency call has been terminated, the emergency centre 
can call back to your phone even though it is logged off.
5.3.3  The Phone Is Logged Off, With Emergency Call Feature 
Disabled
When the emergency call feature is disabled, the SOS text does not 
appear in the display. This means that you cannot make emergency 
calls unless you log on the phone. 
When the emergency call feature is disabled the display looks like this:
1. Log on with your extension number.
2. Dial the emergency number (SOS number). 
Wait for answer.