Operating instructions

CONTENTS
39
Bluetooth
®
Handsfree Prole (HFP)
The Bluetooth
®
Handsfree Profile (HFP)
enables an in-car audio system to be used as
a hands-free facility for a Bluetooth
®
-enabled
mobile phone. It also gives the user access
to phone functions from the controls in the
vehicle. The Bluetooth
®
Handsfree Profile
(HFP) is supported in all phone variants in PCM
and even in CDR. Typical functions include
making, receiving and ending calls, as well
as setting up and terminating the hands-free
audio connection. The Bluetooth
®
Handsfree
Profile (HFP) defines how the phone should be
controlled and how the necessary audio data
are transferred.
The implementation of the Bluetooth
®
Handsfree Profile (HFP) tends to vary among
manufacturers, from one phone model to the
next, and even in different firmware versions
for the same phone. As a result, one mobile
phone may behave differently from another
even though all phones are said to support the
Bluetooth
®
Handsfree Profile (HFP).
Bluetooth
®
Message Access Prole (MAP)
The Bluetooth
®
Message Access Profile (MAP)
allows e-mails and text messages to be transferred
between the mobile phone and PCM. Messages
that are already stored on the mobile phone or
are received while the car is being driven can then
be displayed on PCM or read aloud. The current
implementation in PCM gives read-only access to
messages. It is not possible to compose or reply
to messages at present. However, it is possible to
extract phone numbers from messages and use
this information easily to call the sender back.
Although this profile is not so widely supported as
yet, take-up is increasing, particularly in the high
end of the smartphone market.
Bluetooth
®
Phone Book Access Prole (PBAP)
Bluetooth
®
Phone Book Access Profile (PBAP)
is designed to allow the transfer of phone book
content and phone lists from a mobile phone.
This download takes place after a Bluetooth
®
connection has been established between CDR/
PCM and the mobile phone. However, the transfer
of phone content is always dependent on the
device involved. This is why some parts of the
phone book (e. g. SIM card entries) may be
omitted from the transfer because they are not
shared by the phone. The Phone Book Access
Profile (PBAP) is only supported by newer phone
models.
Bluetooth
®
search – inquiry
The one-off process of pairing between two
devices requires a search (inquiry) to be initiated
by one of the devices, the purpose of which is
primarily to identify potential Bluetooth
®
partners.
After devices have been paired, the connection
will be established in response to a direct
connection request rather than a search.
Bluetooth
®
SIM Access Profile (SAP)
The Bluetooth
®
SIM Access Profile (SAP)
enables both the network-specific information
used to authenticate the subscriber as well as
certain data on the SIM card to be transferred
from one device to another. A typical application
of the Bluetooth
®
SIM Access Profile (SAP) is
in the car, where it allows the user to operate
a permanently installed car phone using the
SIM card residing in a mobile phone. For
users of PCM with built-in telephone module*,
the Bluetooth
®
SIM Access Profile (SAP)
makes it possible to use the car’s external
aerial without having to insert a SIM card into
PCM. Users can also access the phone book
contacts and text messages on their SIM
card and, depending on the mobile phone’s
range of functions, the contacts in the device
memory. At present, the Bluetooth
®
SIM
Access Profile (SAP) is supported only by a
limited number of phone models.
Glossary