Porsche PCM Compatibility And Connection page 41

Glossary
Bluetooth® Handsfree Profile (HFP)
The Bluetooth® Handsfree Profile (HFP) enables
an existing in-car audio system to be used for
hands-free calls and the user to access the
mobile phone functions via the vehicle controls.
The Bluetooth® Handsfree Profile (HFP) is
supported in all phone variants in PCM. Typical
functions include making, receiving and ending
calls, as well as establishing and terminating
the audio connection. The Bluetooth®
Handsfree Profile (HFP) defines how the phone
should be controlled and how the necessary
audio data is transferred. The implementation
of the Bluetooth® Handsfree Profile (HFP)
tends to vary among phone manufacturers and
models, 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).
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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 driving
can then be displayed on PCM or read aloud.
The implementation in PCM gives read-only
access to messages. It is not possible to
compose or reply to messages. However, it
is possible to extract phone numbers from
messages and therefore easily call the sender
back. Although this profile is still not widely
supported, take-up is increasing, particularly
in high-end smartphones.
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Bluetooth® Phone Book Access Profile (PBAP)
The Bluetooth® Phone Book Access Profile
(PBAP) is designed to allow the transfer of phone
book content and call lists from a mobile phone.
This transfer takes place after a Bluetooth®
connection has been established between PCM
and the mobile phone. However, the transfer of
phone content depends on the device. Some
parts of the phone book (e. g. SIM card contacts)
may therefore be omitted 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 pairing of two devices requires a
search (inquiry) to be initiated by one of the
devices, whereby potential Bluetooth® partners
are first identified. After the devices have been
paired, the connection will be established via a
direct connection request rather than a search.
CONTENTS
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
SIM card data to be transferred from one device
to another. A typical application is in the car,
where the user can operate a permanently
installed car phone using the SIM card from
their mobile phone. The Bluetooth® SIM Access
Profile (SAP) allows users of PCM with built-in
telephone module to use the car's external aerial
without having to insert a SIM card into PCM.
They 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.
The Bluetooth® SIM Access Profile (SAP) is
only supported by a limited number of phone
models.