LG C3300 - Manual (Page 34)

Putting a member of a multiparty call on hold
To place one selected caller (whose number is currently displayed
on the screen) of a multiparty call on hold, press the left soft key,
then select Multiparty/Exclude.
Displaying callers in a multiparty call
Using up/down navigation keys, you can scroll through the phone
numbers of the callers in a multiparty call.
Having a private call during a multiparty call
To have a private call with one caller from a multiparty call, display
the number of the caller you wish to talk to on the screen, then
press the left soft key. Select Multiparty/Private to put all the other
callers on hold.
Ending a multiparty call
The currently displayed caller from a multiparty call can be
disconnected by pressing the key. To end a multiparty call,
press the left soft key, then select Multiparty/End multiparty.
After pressing the left soft key, selecting Multiparty/End all will end
all the active and on-hold calls.
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C3300 User Guide
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General functions