Huawei U6020 User Manual page 28

Receiving a DC Call During a Voice Call
When you receive a DC call during a voice call, the phone displays
"Missed DC call From: xxxxxxxx." At this moment, press
select Ignore and continue with the voice call; press
select Hold and the phone will display "Push DC button to call
xxxxxxxx." Then you can do the following:
Press

voice call screen.
Press

party.
Push and hold

Receiving a DC Group Call During a Voice Call
When you receive a DC Group call during a voice call, the phone
displays "Missed DC Group call From: xxxxxxxx." At this moment,
press to select Ignore and continue with the voice call; press
to select Hold and the phone will display "Push DC button
to call xxxxxxxx." Then you can do the following:
Press

voice call screen.
Press

group members.
Push and hold

Receiving an Alert During a Voice Call
When you receive an Alert during a voice call, the phone displays
"Incoming Alert From: xxxxxxxx." At this moment, press
to select Cancel. Then press
to select Alert. An alert will be sent to the other
to make a DC call.
to select Cancel. Then press
to select Invite. An invitation will be sent to the
to make a DC call to the group call initiator.
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