IP PHONE FOR MX-ONE™
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Congestion tone
Vacant number tone
Call waiting tone or verification tone
Intrusion tone
Conference tone*
Connection in progress tone
On hold
* The conference tone can be disabled by the system administrator.
Note:  The tones above are the most commonly used tones worldwide. 
Many markets use a differing tone for one or more situations.
2.9 Handset Mode
The handset mode means that you lift the handset in order to make or 
answer a call. The features and processes described in this manual are 
based on the handset mode, but it is possible also to make and answer 
calls in handsfree mode, that is, without lifting the handset.