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■ Options during a call
Many of the options that you can use during a call are network services. For 
availability, contact your network operator or service provider.
To increase or decrease the volume during a call, press the navigation key right or 
left.
For some of the following options, select Options during a call:
Mute or Unmute, Contacts, Menu, Record, Lock keypad, Loudspeaker or 
Handset, and the network services Hold or Unhold, Answer and Reject, New call, 
Send DTMF (to send tone strings), Swap (to switch between the active call and 
the call on hold), Transfer (to connect a call on hold to an active call and 
disconnect yourself), Conference (to make a conference call that allows up to five 
persons to take part in a conference call), Add to conference, Private call (to 
discuss privately in a conference call), End call, End all calls.
Note: Do not hold the device near your ear when the loudspeaker is in use, because 
the volume may be extremely loud.