Buick Regal User Manual page 85

Conference calling and three-way
calling must be supported on the
Bluetooth phone and enabled by the
wireless service carrier to work. This
feature is only supported when the
vehicle is not moving.
To start a conference while in a
current call:
1. Turn and press the Menu knob
and select Enter Number.
2. Enter the phone number and
select OK.
3. After the call has been placed,
turn the Menu knob and choose
Merge Calls.
4. To add more callers to the
conference call, repeat
Steps 1 3. The number of
callers that can be added is
limited by your wireless service
carrier.
Turn and press the Menu knob and
select Hang Up or press Hang Up
on the screen.
Press / .
During a call, all sounds from inside
the vehicle can be muted so that the
person on the other end of the call
cannot hear them.
Turn and press the Menu knob and
select Mute Call. Press again to
cancel mute.
Audio can be transferred between
the Bluetooth system and the cell
phone.
The cell phone must be paired and
connected with the Bluetooth
system before a call can be
transferred.
During a call with the audio in the
vehicle, press the Transfer Call
button on the screen or press and
hold the / button on the
steering wheel.
Use the audio transfer feature on
the cell phone. See your cell phone
manufacturer's user guide for more
information. Press the Transfer call
button on the screen or press and
hold the / button on the
steering wheel.