Buick LaCrosse 2012 Owner's Manual page 249

Conference Calling
Conference calling and three way
calling must be supported on the
mobile phone and enabled by the
wireless service carrier to work.
To start a conference calling while
in a call:
1. Press SELECT and select Enter
Number.
2. Enter the character sequence
then select call.
3. After the call has been placed,
press SELECT and choose
Merge Calls.
4. To add more callers to the
conference call, repeat steps 1
through 3. The number of callers
that can be added are limited by
your wireless service carrier.
To disconnect from one caller while
in a conference call, select Detach
Number from the menu and select
the number to hang up on.
Ending a Call
Press SELECT and select Hang Up,
or press the / button on the
steering wheel controls.
To Mute a Call
Press SELECT and select
Mute Call.
To Cancel Mute
Press SELECT and select
Mute Call.
Dual Tone Multi-Frequency (DTMF)
Tones
The UHP system can send numbers
during a call. This is used when
calling a menu driven phone
system.
To access this system:
1. Press SELECT and select Enter
Number.
2. Enter the character sequence.
I n f o r ma t i o n P r o v i d e d b y :
Infotainment System
Operating UHP Using Voice
Control
The voice control of the UHP
system enables you to operate
several functions of the mobile
phone using your voice. The UHP
system uses voice commands to
control the system and dial phone
numbers. After input of the
command the infotainment system
guides you through the dialogue
with appropriate questions and
feedback to achieve the desired
action. The commands and
numbers can be spoken without a
pause between the individual words.
In addition you can save telephone
numbers under a name tag that is
selectable by you. The telephone
connection can be set up with
this name.
In the event of incorrect operation or
incorrect codes, the voice control
gives you voice feedback and
requests you to re-enter the
desired command.
7-75