GMC Sierra Denali 2017 Owner's Manual page 220

3. Say each digit, one at a time.
After each digit is entered, the
system repeats back the digit it
heard followed by a tone. After
the last digit has been entered,
say Dial.
Once connected, the person called
will be heard through the audio
speakers.
Using the Re-dial Command
1. Press . The system responds
Ready, followed by a tone.
2. After the tone, say Re-dial.
The system dials the last
number called from the
connected cell phone.
Once connected, the person called
will be heard through the audio
speakers.
Receiving a Call
When an incoming call is received,
the audio system mutes and a ring
tone is heard in the vehicle.
Press to answer the call.
Press to ignore a call.
Call Waiting
Call waiting must be supported on
the cell phone and enabled by the
wireless service carrier.
Press to answer an incoming
call when another call is active.
The original call is placed
on hold.
Press again to return to the
original call.
To ignore the incoming call, no
action is required.
Press to disconnect the
current call and switch to the call
on hold.
Three-Way Calling
Three-way calling must be
supported on the cell phone and
enabled by the wireless service
carrier.
1. While on a call, press
2. Say Three-way call.
3. Use the Dial or Call
command to dial the number of
the third party to be called.
Infotainment System
4. Once the call is connected,
press
together.
Ending a Call
Press to end a call.
Transferring a Call
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. The connection process
can take up to two minutes after the
ignition is turned to ON/RUN.
To Transfer Audio from the
Bluetooth System to a Cell Phone
During a call with the audio in the
vehicle:
1. Press
.
2. Say Transfer Call.
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to link all callers
.