Cellular Phone: Description and Operation

Cellular Phone

TELEPHONE SYSTEM COMPONENT LOCATION









GENERAL
The telephone system fitted to Range Rover uses the MOST ring for communication with the rest of the entertainment and information system. The system allows the driver to connect their own phone into the integrated phone system using Bluetooth(R) technology. Bluetooth(R) technology allowing hands free operation of a Bluetooth mobile phone.
The system comprises:
- Bluetooth phone module
- Touch Screen Display (TSD)
- Microphone
- Integrated Head Unit (IHU)
- Steering wheel controls
- Audio amplifier (for audio output)
- Navigation computer (for voice recognition if fitted).
Compatible Bluetooth(R) mobile telephones can communicate with the vehicle's in-built telephone system. Connection must be made with the ignition on or the engine running.

SYSTEM COMPONENTS
The following describes the components used in the telephone system.

Bluetooth(R) Phone Module





The Bluetooth(R) phone module is located in the rear LH (left-hand) side of the luggage compartment, adjacent to the audio amplifier. The module is connected to the MOST ring and, as the interface between the telephone and the IHU, processes all instructions and audio from and to the phone. The module contains voice recognition hardware and software and is used for control of the voice activation system.

Touch Screen Display (TSD)









The Touch Screen Display (TSD) forms the basis of the telephone system. It communicates with the rest of the audio/infotainment system on the MOST ring and allows control of the telephone system and other infotainment systems from a single point.
The TSD communicates with the Integrated Head Unit (IHU) on the MOST ring and provides the driver interface and driver display of the telephone system. The TSD also provides driver display and control of the audio, the rear view camera, the Venture Cam, the navigation system, the Traffic Message Channel and the rear seat entertainment.
The telephone system and other systems are operated by a combination of the physical buttons located on each side of the screen and the 'virtual' buttons displayed on the touch screen, in addition to the steering wheel mounted switches. For clarification, the physical buttons on the TSD are referred to as 'buttons' and the touch screen virtual buttons are referred to as 'icons'.
The dual-view TSD allows the front seat passenger to view television and video images when the car is being driven. The dual-view screen allows the driver to see the telephone or other system screens but not the TV or video when the vehicle is moving. The screen can be switched between single and dual view by pressing the audio/video button.
The TSD is mounted centrally in the instrument panel. The dual-view TSD enables the passenger and driver to view completely different images from their respective seating positions. This technology provides a solution for the legal issues attached to viewing moving images whilst the vehicle is in motion. It is not possible for the driver to view moving images with an active speed signal but the passenger can.

NOTE:
Due to legislation the NAS markets will not receive this option. A single view only display is available in these markets.
The dual-view TSD uses Parallax Barrier Shutter Technology to alternately hide and reveal columns of pixels to the left and right hand views of the screen. The display comes with a specially designed agar coating to help prevent sunlight bleaching.

Microphone





The microphone is located in the front interior lamp console. The standard, directional type microphone is connected to the Integrated Head Unit (IHU) for voice recognition of the telephone and the navigation system. The microphone has an integrated noise suppression system for hands-free telephone use.

Integrated Head Unit (IHU)





The Integrated Head Unit (IHU) is located behind the TSD in the center of the instrument panel. The IHU communicates with the Bluetooth(R) phone module on the MOST ring. The IHU contains the software for telephone functionality.

Steering Wheel Control Switches









The steering wheel switches for the telephone system are located on the RH (right-hand) side of the steering wheel. The driver is able to use these switches for several phone related functions including:
- Accept incoming calls.
- Reject incoming calls.
- Make phone calls from the phones own phone book.
- Use the voice dialing feature of the telephone system.

Audio Amplifier





The amplifier (DSP or Logic7) is located in the rear LH (left-hand) side of the luggage compartment. The audio amplifier receives audio from the Bluetooth(R) phone module on the MOST ring, the audio is then processed and passed out to the speakers.

BLUETOOTH(R)
The Bluetooth(R) phone module allows the user to connect their own mobile phone handset (Bluetooth(R) enabled only) to the vehicle telephone system.
Once connected, the user can use the vehicle hands free functions. The Bluetooth(R) system limits the functions to those available in the Bluetooth(R) hands free profile.
The available features include:
- Make/receive call
- Voice calls using the phones own voice tags (where set up).
- Signal strength indication on the TSD (if supported by the telephone handset software)
- Phonebook download
- Missed calls
- Last number redial
- Calls list.

Bluetooth(R) Pairing
Before a Bluetooth(R) phone handset can be used on the vehicle hands free system, the phone must be 'paired' to the Bluetooth(R) phone module. The following steps describe the 'pairing' process:
- On the handset, make sure that Bluetooth(R) is switched 'ON'.
- The user then initiates a search for other Bluetooth(R) devices from the handset.
- The Bluetooth(R) phone module acknowledges the existence of the Bluetooth(R) phone.
- On the handset, 'Land Rover' appears in the available device list.
- The user selects 'Land Rover' from the device list and the Bluetooth(R) phone module will attempt pairing.
- The Bluetooth(R) phone module requests a Personal Identification Number (PIN) from the handset.
- The user then enters the handset PIN 2121.
- If the PIN is correct, the phone handset will be paired with the Bluetooth(R) phone module and the handset details are stored in the module EEPROM. The module details are also stored in the phone handset.
When the pairing procedure is complete (assigning the phone handset to the vehicle) the phone handset will automatically connect to the vehicle system once they come into range (approximately 10 meters) and the ignition switch on or the engine is running. The term 'Bluetooth'(R) is displayed in the TSD to inform the driver that the phone handset is connected to the Bluetooth(R) phone module , if no network operator is displayed.
Up to five Bluetooth(R) equipped phone handsets can be paired with the Bluetooth(R) phone module. A phone handset can be de-registered/disconnected from the module at any time by the user. Only one phone handset can be used on the vehicle hands free system at any one time.
If the Bluetooth(R) phone module is replaced, each phone handset which was paired with the original module will require re-pairing with the replacement module.

VOICE RECOGNITION
The voice recognition system controls the following systems (where fitted):
- Telephone
- Notepad
- Navigation.
The voice recognition software is contained in the Touch Screen Display (TSD). The microphone is hardwired to the TSD for voice control and the IHU for telephone. The TSD will allow voice control of the telephone system, the Notepad and the navigation system. The TSD has limited language capability with German, French, Italian, Spanish, Dutch, USA and UK supported.
The voice recognition system enables the driver to activate functions of the system without operating controls manually. This allows the driver to concentrate on driving the vehicle, improving safety. When the driver speaks one of the defined voice commands, with the voice recognition system active, the voice recognition software converts the command into a control signal for the system.
The Notepad function allows the driver to record notes of up to 30 seconds in length.

Voice Control Activation





The voice control system is controlled and activated using the Voice button located on the RH (right-hand) steering wheel switch module. Press the switch once briefly to start a voice session and press and hold to cancel a voice session.
When a voice session is started, a tone will be emitted to indicate the system is waiting for a voice command from the driver.
Once a spoken command has been given, the system will repeat the command as understood by the system as confirmation. The command will be then be performed by the relevant system or the system will ask for further clarification of the command. Always wait until after the tone is heard before giving any further commands.
If a command is not understood by the system, it will respond with the response "Sorry". The driver then has two further attempts to give the command. If the system still does not understand the command, the voice session is cancelled.
Briefly pressing the Voice button during a voice session will interrupt the audible feedback. Wait for the tone to sound before giving the next command.
A command can be cancelled by the driver giving the command "Cancel" or by pressing and holding the voice button.
A double tone indicates the voice session has been cancelled.
Refer to the Owners Handbook for details of command lists and voice control of the telephone, notepad and navigation systems.

TELEPHONE SYSTEM CONTROL DIAGRAM

NOTE:
A = Hardwired, OLIN bus; P = MOST