Nokia 6102i User Manual page 26

Network services options are Answer and Decline, Hold or Unhold, New call,
Add to conference, End call, End all calls, and the following:
Touch tones — to send tone strings
Swap — to switch between the active call and the call on hold
Conference — to make a conference call that allows up to five persons to take part
in a conference call
Warning: Do not hold the device near your ear when the loudspeaker is in
use because the volume may be extremely loud.
C a l l f u n c t i o n s
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