Operating instructions

CONTENTS
40
D
O
I
M
DTMF
DTMF (Dual Tone Multiple Frequency) is a
method of telephone signalling, which can be
used, for example, to transmit tones whenever
the keypad is operated during a call, e. g. to
operate a voice mailbox or telephone menu
system.
In-band ringing
Some mobile phones are able to transfer
their ringtone to the vehicle via Bluetooth
®
.
When a call comes in, PCM then rings with
the tone set on the phone rather than with its
own tone. In this case, the ringtone settings in
PCM are not active. The ringtone can only be
set via the mobile phone. This function is not
supported by CDR.
Mobile phone preparation
Mobile phone preparation (in conjunction with
CDR or PCM) is a typical Bluetooth
®
hands-free
system based on the Bluetooth
®
Handsfree Profile
(HFP). The Bluetooth
®
mobile phone preparation
supports the following functions in principle:
pairing of a mobile phone with search initiated
from the car or phone
automatic connection of a paired device
at system start-up
basic phone functions (making, receiving
and ending calls)
hands-free capability via the in-car
audio system
status displays such as network name
and signal quality
transfer of phone book entries and call lists
from the mobile phone
sending of DTMF tones
Since the range of supported functions varies
greatly between different mobile phones, please
refer to the detailed information relevant to your
vehicle equipment and mobile phone, starting on
page 43.
Online search
The online search feature in PCM from November
2012 onwards uses the Google Places
®
interface.
The user is able to look for points of interest in
various search localities (near car, near destination
or free location input) by entering a search term.
The query is sent by the Aha Radio app to
a Google
®
server and this returns a response.
The results are presented in a list on PCM.
Online services
Online services is how we refer to those
functions that download their information to
the car through a mobile Internet connection.
Since November 2012, PCM working in
conjunction with the Aha Radio app installed
on a smartphone has been able to access
online services that include web radio, online
weather updates and online searching. The
data are transferred to PCM via cable (iOS
®
device) or Bluetooth
®
(Android
®
device) where
they can be displayed or output through the
in-car audio system.
Glossary
*In the Panamera models, the Bluetooth
®
handset is included with PCM with telephone module.