Make a conference call
To make a conference call (network service), enter a participant's phone number, and press the call key.
When the participant answers, select Options > New call .
When you have made a phone call to all the participants, select Options > Conference to merge the calls into a conference call.
To mute the microphone of your device during the call, select Options > Mute .
To drop a participant from the conference call, select Options > Conference > Drop participant and the participant.
To discuss privately with a conference call participant, select Options > Conference > Private and the participant.