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<concept id="GUID-EA8038F6-8727-5ABE-805C-9FF095293EB7" xml:lang="en"><title>Bluetooth

Comms Profiles Collection Overview</title><shortdesc>Provides implementations of some Bluetooth profiles and support

for others. (Some Bluetooth profiles are omitted.) </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

<section id="GUID-6B099746-A936-5009-81F0-D3282ED6C48A"><title>Purpose</title> <p id="GUID-D7338D15-E269-54A5-B4E1-D5F0AACA9F32">  This document introduces

Bluetooth profiles and indicates the current status of those profiles within

the Symbian platform Bluetooth subsystem. A Bluetooth profile encompasses

a defined set of functionality for an operation or task, identifies the Bluetooth

stack features required to perform the operation or tasks and describes how

those features are used. </p> <p>By specifying these details Bluetooth profiles

make a significant contribution to realising the interoperability goals of

the Bluetooth consortium. If all device manufactures implement the profiles

according to the standards users can confidently purchase Bluetooth enabled

devices knowing that they will all work. </p> <p><b>In this overview </b> </p> <p>You will learn about the status of the Bluetooth

profiles, those that are <i>implemented</i>, those that are <i>supported</i> and

those that are <i>omitted</i> from the current Symbian platform Bluetooth

subsystem. Documentation will be provided for each of the supported profiles

and this page will be updated with links as they become available. </p> <p>The

standards define terminology specific to individual profiles. Please refer

to the latest Bluetooth standard at <xref href="http://www.bluetooth.com" scope="external">www.bluetooth.com</xref> for all official definitions. </p> </section>

<section id="GUID-3D73ECD8-AA0F-5E1A-B963-32921B31B6E8"><title>Architecture</title> <fig id="GUID-CEFC70E7-D449-52CF-99C5-869BD3B4D504">

<image href="GUID-13D48922-4DEF-56A6-8ADE-DD1DB280627B_d0e640624_href.png" placement="inline"/>

</fig> </section>

<section id="GUID-9957D1E0-F639-5CEB-BD61-52B81BBACA88"><title>Description</title> <p>There

are two kinds of profiles provided for by Symbian platform: implemented and

supported. Implemented profiles can be used directly from the existing components.

When a profile is supported the licensee will need to provide its own APIs

to make the functionality of that profile available to application developers. </p> <fig id="GUID-9B0D507E-B9E1-5E3F-8330-15564BD89681">

<title>              Figure 1. Profile dependencies            </title>

<desc><p>Figure 1 above shows the dependencies of profiles. The shaded profiles,

discussed in the next section, are implemented by the Symbian platform Bluetooth

subsystem. </p> </desc>

<image href="GUID-60B4CDBE-B863-52EA-9125-632A1FF1A059_d0e640645_href.png" placement="inline"/>

</fig> <p><b>Implemented

Bluetooth profiles</b> </p> <p>The following profiles are implemented by Symbian

platform Bluetooth: </p> <ul>

<li id="GUID-12BCA8FE-B874-56AE-9F09-00D013BB9E25"><p>Generic Access Profile

(<b>GAP</b>) </p> </li>

<li id="GUID-3151F147-4A6B-5C83-B8D5-A70FDB58DEFC"><p>Serial Port Profile

(<b>SPP</b>) </p> </li>

<li id="GUID-ED98C49B-BBEB-536C-A806-BEA77DEDD497"><p>Generic Object Exchange

Profile (<b>GOEP</b>) </p> </li>

<li id="GUID-94EA76BC-C843-5558-9E16-A5931B937372"><p>Personal Area Networking

(<b>PAN</b>) Profile </p> </li>

<li id="GUID-7C0BA324-CAC9-5595-9523-1CEF3A1D2A4D"><p>Audio Video Remote Control

Profile (<b>AVRCP</b>) </p> </li>

<li id="GUID-38F8CCD0-93F8-571D-AD52-762FDEC2A4E9"><p>Generic Audio Video

Distribution Profile (<b>GAVDP</b>) </p> </li>

<li id="GUID-E7D4DD39-6EE4-5A71-AED5-9D61F7B8BC3F"><p>Advanced Audio Distribution

Profile (<b>A2DP</b>) </p> </li>

</ul> <p>The profiles are introduced here: </p> <p id="GUID-BCA99FAB-1825-56A0-9D06-926B30C0FFBA"><b>GAP</b> </p> <p>The Generic

Access Profile is the foundation Bluetooth profile. It enables two devices

to discover and connect to each other in a piconet. GAP defines the mode of

operation for participating devices, handles role assignment, and controls

the connection and link functionality at protocol level. </p> <p>The Generic

Access profile, as the basic piconet enabler, uses features of the RFCOMM,

L2CAP, Link Manager and Link Controller layers of the <xref href="GUID-66B87EE1-00E8-592F-8FBA-5DDDC257F758.dita#GUID-66B87EE1-00E8-592F-8FBA-5DDDC257F758/GUID-EBA301E1-0034-587C-9355-71DB7F762A6B">Bluetooth stack</xref>. As an application developer you do not need to concern

yourself with the details of the protocols as this is handled internally.

The APIs will handle all of the connection, linking and role negotiation for

you. Note however that there are no explicit GAP APIs. The GAP functionality

is implicit in other APIs within Symbian platform. </p> <p id="GUID-74CDD0F3-3901-5F23-8FE8-B23FEB6DB243"><b> SPP </b> </p> <p>The Serial

Port Profile gives Bluetooth devices RS-232 emulation capabilities, allowing

applications that were written with cable connection in mind to make the transition

to Bluetooth. The application establishes a link over the Bluetooth connection

without being aware of Bluetooth. The SPP simply emulates a typical RS-232

serial cable communications session. The SPP enables multiplexing and provides

support for two device types: communication endpoint devices and intermediate

devices. SPP operates on the RFCOMM and L2CAP layers of the Bluetooth stack. </p> <p>The

SPP is an integral part of the following profiles: </p> <table id="GUID-0C88077B-7C0A-5304-801C-2D76907E5BAF">

<tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/>

<thead>

<row>

<entry>Bluetooth Profile</entry>

<entry>Supported</entry>

</row>

</thead>

<tbody>

<row>

<entry><p>Fax Profile </p> </entry>

<entry><p>Yes </p> </entry>

</row>

<row>

<entry><p>Dial-up Networking Profile(DUNP) </p> </entry>

<entry><p>Yes </p> </entry>

</row>

<row>

<entry><p>LAN Access Profile </p> </entry>

<entry><p>Yes </p> </entry>

</row>

<row>

<entry><p>Headset Profile </p> </entry>

<entry><p>Yes </p> </entry>

</row>

<row>

<entry><p>Hands Free Profile </p> </entry>

<entry><p>Yes </p> </entry>

</row>

<row>

<entry><p>Generic Object Exchange Profile </p> </entry>

<entry><p>Implemented </p> </entry>

</row>

<row>

<entry><p>Phonebook Access Profile </p> </entry>

<entry><p>No </p> </entry>

</row>

<row>

<entry><p>SIM Access Profile </p> </entry>

<entry><p>No </p> </entry>

</row>

</tbody>

</tgroup>

</table> <p>Links to examples, guides, and tutorials that use the SPP will

be provided here as they become available. </p> <p id="GUID-C7894668-B9C0-5C31-BD24-8A3753DF1F6C"><b> GOEP </b> </p> <p>The Generic

Object Exchange Profile provides the functionality needed to use the Object

Exchange (OBEX) Protocol over Bluetooth. GOEP is used by the following profiles: </p> <table id="GUID-A1A29057-A7A4-5624-909F-1ED78CF362D3">

<tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/>

<thead>

<row>

<entry>Bluetooth Profile</entry>

<entry>Supported</entry>

</row>

</thead>

<tbody>

<row>

<entry><p>Object Push Profile </p> </entry>

<entry><p>Yes </p> </entry>

</row>

<row>

<entry><p>File Transfer Profile </p> </entry>

<entry><p>Yes </p> </entry>

</row>

<row>

<entry><p>Synchronisation Profile </p> </entry>

<entry><p>Yes </p> </entry>

</row>

</tbody>

</tgroup>

</table> <p>GOEP makes a significant contribution to the overall offering

by providing client and server roles to the devices of the Bluetooth Piconet.

Applications using GOEP can push and pull objects from other devices in the

piconet. </p> <p id="GUID-85C0DABF-1EC0-5B25-9E36-72C42E5D4A97"><b> PAN Profile </b> </p> <p>The

Personal Area Networking profile provides a simplification to the LAN Access

and Dial-up Networking profiles (both now deprecated), by reducing the number

of layers in a network connection. PAN enhances networking over Bluetooth

by providing new functionality such as the Group Ad-hoc Networking role, discussed

below. </p> <p>The PAN profile provides for three possible roles: the User

(PANU), Group Ad-hoc Networking (GN) and Network Access Point (NAP). </p> <p>When

a device is operating in the PANU role it can connect to a device operating

in any of the three roles. This allows it to act as a client to one of these

devices. When operating in the GN role the device can accept a connection

request from a PANU device or make its own request to connect to such a device.

PANU and GN roles can be switched but a PANU device connecting to a NAP device

can not switch roles because NAP is not supported. </p> <p>PAN is integrated

into the networking framework as a plug-in. See the Networking documentation

for more information about networking with the Bluetooth PAN profile plug-in.

Therefore applications can treat a Bluetooth PAN as any other networking technology. </p> <p id="GUID-7251B0E5-D6B1-524B-9714-6A469F8E1CB3"><b>AVRCP</b> </p> <p>The Audio

video remote control profile implements certain aspects of the AV/C Digital

Interface Command Set (IEEE 1394) for use over a Bluetooth connection. This

profile defines two possible roles: controller (CT) and target (TG). The controller

device sends commands to the target who acts on those commands. </p> <p>Role

switching is possible. Consider a Bluetooth headset with integrated command

functions. When the headset is acting in the CT role it can begin music playback

or switch songs on the TG Symbian device. The Symbian device can become the

CT to send a volume control command to the headset, making the headset the

TG for that transaction. </p> <p>Features of the profile implemented in the

Symbian platform Bluetooth subsystem are presented in the following table

according to defined role. </p> <table id="GUID-6C8A5320-A06C-51A5-B431-14CFC828BAAA">

<tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/>

<thead>

<row>

<entry>CT</entry>

<entry>TG</entry>

</row>

</thead>

<tbody>

<row>

<entry><p>All Mandatory features. </p> </entry>

<entry><p>All Mandatory features. </p> </entry>

</row>

<row>

<entry><p>Sending UNIT info command. </p> </entry>

<entry><p>Initiating connection for control. </p> </entry>

</row>

<row>

<entry><p>Sending subunit info command. </p> </entry>

<entry><p>Receiving pass through commands. </p> </entry>

</row>

<row>

<entry><p>Sending pass through commands. </p> </entry>

<entry><p>Sending all operation_ids. </p> </entry>

</row>

<row>

<entry><p>Sending all operation_ids. </p> </entry>

<entry><p>Receiving all operation_ids. </p> </entry>

</row>

<row>

<entry><p>Receiving all operation_ids. </p> </entry>

<entry><p> </p> </entry>

</row>

</tbody>

</tgroup>

</table> <p>AVRCP operates over a GAP connection, communicating via the Audio

Video Control Transport Protocol (AVCTP) on a channel in the L2CAP layer.

Application developers will use the Remote Control Framework for creating

apps that use the AVRCP. </p> <p id="GUID-3ABC26C2-D65A-5577-B9B2-0A613D48D49B"><b>GAVDP</b> </p> <p>The Generic

audio video distribution profile provides the mechanism for distributing audio

and video content over a Bluetooth connection. There are two roles defined

for GAVDP, they are: Initiator (INT) and Acceptor (ACP). INT begins a signalling

procedure and ACP responds. The roles are not linked to the master / slave

relationship between devices and can switch when a new procedure is initiated. </p> <p>GAVDP

has been implemented in the Symbian platform Bluetooth subsystem specifically

to support the Bluetooth stereo headset usecase. The Audio Video Distribution

Transport Protocol (AVDTP) manages the transmission of audio packets over

an L2CAP channel. The GAVDP component of the Bluetooth subsystem provides

an API to configure, send and receive data over the AVDTP within an ESock

plug-in. </p> <p id="GUID-E051004B-9650-5AA9-9CDB-5C4925F71A68"><b>A2DP</b> </p> <p>The Advanced

Audio Distribution Profile describes the protocols and procedures to stream

high quality stereo audio over Bluetooth. </p> <p><b>Supported Bluetooth Profiles </b> </p> <p>The following list indicates

profiles for which the Symbian platform subsystem has provided the necessary

framework should a licensee have a need to implement them. Application developers

should refer to the documentation for the platform(s) they are targeting to

determine which additional profiles (if any) are available for a particular

device. </p> <p>The Bluetooth profile implementers guide, <i>available soon</i>,

describes how licensees can enable profiles on their devices. </p> <ul>

<li id="GUID-20776509-543D-502E-8B22-90F1A0FED5CA"><p>Advanced Audio Distribution

Profile </p> <p>Linked to MMF. </p> </li>

<li id="GUID-9C1A784A-E765-5AC4-A158-B56360D5171B"><p>Video Distribution Profile </p> <p>Linked

to MMF. </p> </li>

<li id="GUID-DFD5DA23-040B-5ECA-A20B-E3254D3664E3"><p>File Transfer Profile </p> </li>

<li id="GUID-9CB7D73F-6F3B-52DA-B7C2-C356CBFB8E87"><p>Synchronization Profile </p> </li>

<li id="GUID-9D3A40EE-9068-5E5D-A373-B423E5E0AB09"><p>Fax Profile </p> </li>

<li id="GUID-3BFFA617-27AF-53E1-96BC-A130356D9540"><p>Dial Up Networking (DUN)

Profile </p> </li>

<li id="GUID-6C05F7F3-715C-5610-B82F-1E758610170F"><p>Headset Profile </p> </li>

<li id="GUID-BE0FD664-E594-598E-BA19-8840E420DB24"><p>Hands Free Profile </p> <p>Use

the Remote Control Framework. </p> </li>

<li id="GUID-24DBFC9A-8F62-5A8F-BADB-0982572A47B5"><p>HID Profile </p> </li>

<li id="GUID-6BA8FC1A-1001-5DAC-AF6A-256CA6F3250A"><p>Device ID Profile </p> </li>

<li id="GUID-9F6B9D39-56D2-5C12-8541-506077392190"><p>Basic Printing Profile </p> </li>

<li id="GUID-9404210C-4C1F-558B-B74B-5BF0296221DE"><p>Basic Imaging Profile </p> </li>

<li id="GUID-052835AA-41A8-5BE7-B6E5-9A064AB11A9C"><p>Service Discovery Application

Profile </p> </li>

<li id="GUID-32D6A3BB-B4C8-5B66-B6FC-38B3AEEF6566"><p>Unrestricted Digital

Information Profile </p> </li>

</ul> <p><b>Omitted

Bluetooth profiles</b> </p> <p>The following profiles are explicitly omitted

from the Current Symbian platform Bluetooth subsystem: </p> <ul>

<li id="GUID-803B0A52-D5F0-5FBD-B79E-DFFD0EF98CC1"><p>Cordless Telephony Profile </p> </li>

<li id="GUID-CAFA84DC-DBE5-522E-B060-55D9C9393800"><p>Intercom Profile </p> </li>

<li id="GUID-48A2EAE9-80CE-5688-BE8A-396C4208CF5E"><p>SIM Access Profile </p> </li>

</ul> </section>