Porsche PCM Compatibility And Connection page 43

Glossary
Bluetooth® Handsfree Profile (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).
1) In the Panamera models, the Bluetooth® handset is included with PCM with telephone module.
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Bluetooth® Message Access Profile (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 Profile (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.
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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
CONTENTS
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 module¹⁾, 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.