Cellular Phone: Description and Operation
Cellular Phone
TELEPHONE SYSTEM COMPONENT LOCATION
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 dock their own phone into the integrated phone system. This is achieved using a number of phone adaptor cradles which are specific to different makes and models of phone. The phone adaptor cradle is then docked with a base plate adaptor in the vehicle. This allows the integrated phone system to control the telephone and enable the driver to make and receive telephone calls using hands free operation.
The telephone system also supports Bluetooth technology allowing hands free operation of a Bluetooth mobile phone. The system has limited functionality compared with the integrated phone system.
The system comprises:
- Adaptor cradle (phone model specific)
- Base plate adaptor
- Transceiver Module (TM) ) up to 2009MY / Bluetooth phone module from 2009MY
- Touch Screen Display (TSD)
- Microphone
- Integrated Head Unit (IHU)
- Multiband antenna (roof pod)
- Steering wheel controls
- Audio amplifier (for audio output).
- Navigation computer (for voice recognition if fitted)
SYSTEM COMPONENTS
The following describes the components used in the telephone system.
Adaptor Cradle
The telephone adaptor cradle is located in the center arm rest and is directly connected to the base plate adaptor. The adaptor cradle is detachable from the base plate adaptor to allow for different phones to be used in the system. A new adaptor cradle is the only requirement for the system to be changed from one type of phone to another. Adaptor cradles are available for the top 20 business phones in each market, this is subject to change as new phones come on to the market and replace older models. Adaptor cradles will be available through the accessories department.
Depending on the variant of the adaptor cradle, the cradle will have one of two ways of communicating with the phone. If the adaptor cradle is for a Nokia F Bus type phone the cradle will route the connections from the transceiver module straight through to the phone.
If the adaptor cradle is for a non Nokia F bus or a non Nokia type phone (i.e. Motorola), the cradle will have an internal circuit to convert signals from the phone to be compatible with the transceiver module signals.
Base Plate Adaptor
The base plate adaptor is located in the center arm rest. The base plate adaptor is the interface between the telephone adaptor cradle and the transceiver module. The following pin out table details the connections at the base plate adaptor from the transceiver module.
The base plate adaptor has a serial link connection to the transceiver module. The base plate adaptor is connected to the multiband antenna via a coaxial lead.
Transceiver Module (TM) - Up to 2009MY
The TM is located in the rear LH (left-hand) side of the luggage compartment above the navigation computer (where fitted). The TM 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 TM contains voice recognition hardware and software and is used for control of the voice activation system on vehicles not fitted with a navigation computer. The TM also has Bluetooth(R) functionality.
Bluetooth(R) Phone Module - From 2009MY
The Bluetooth(R) phone module is located in the rear LH (left-hand) side of the luggage compartment above the navigation computer (where fitted). 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 on vehicles not fitted with a navigation computer.
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. For clarification, the physical buttons are referred to as 'buttons' and the touch screen virtual buttons are referred to as 'icons'.
Microphone
The microphone is located in the front interior lamp console. The standard, directional type microphone is connected to the Integrated Head Unit (IHU) and the navigation computer (if fitted) for voice recognition of the navigation system and the telephone. 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 TM on the MOST ring. The IHU contains the software for telephone functionality.
Roof Pod Antenna
The multi-band antenna is located in the roof pod. Two roof pods are available to cover vehicles with and without SDARS. The two roof pods operate on the following frequencies:
- World Band - Telephone only or telephone and GPS (global positioning system) antenna GSM and PCS/DCS and 3G 810 to 960 MHz 1710 to 2170 MHz
- NAS Only - SDARS and telephone or SDARS and telephone and GPS (global positioning system) antenna AMP and PCS only 824 to 960 MHz 1850 to 1990 MHz
Roof pods without SDARS contain a multiband antenna. When SDARS is fitted the roof pod contains a broadband antenna which prevents interference from the SDARS antenna affecting telephone reception.
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.
The 'R/T' button is used to switch between telephone and audio functions. When using the steering wheel switches in telephone mode, visual confirmation of phone book name or number is displayed in the instrument pack message center. The address book/phone book details can be scrolled through using the audio search up and down buttons. The telephone/voice recognition button is used to make a call, answer an incoming call and to end an active call. When not in phone book mode and no number is displayed in the message center, a short press of the telephone/voice recognition button will dial the last dialed number.
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 TM on the MOST ring, the audio is then processed and passed out to the speakers.
BLUETOOTH (R)
Vehicles up to 2009MY - The Bluetooth functionality in the TM allows the user to connect their own mobile phone handset (Bluetooth(R) enabled only) to the vehicle telephone system without fitting the phone into the adaptor cradle. If a phone is fitted to the adaptor cradle this will be given priority over the system and a Bluetooth(R) enabled phone will be ignored.
Vehicles from 2009MY - The Bluetooth 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.
On vehicles up 2009MY - The available features include:
- Make/receive call
- Voice calls using the phones own voice tags (where set up).
- Phonebook download
- Missed calls
- Last number redial
- Calls list.
Bluetooth(R) will not allow the following to be accessed via the TSD:
- Short Message Service (SMS)
- No signal strength indication on the TSD
On vehicles from 2009MY - 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 TM or the Bluetooth 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 TM or Bluetooth 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 TM or Bluetooth phone module will attempt pairing.
- The TM or Bluetooth 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 TM or the Bluetooth 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 is in position II. The term 'Bluetooth'(R) is displayed in the TSD to inform the driver that the phone handset is connected to the TM or the Bluetooth phone module, if no network operator is displayed.
Up to five Bluetooth(R) equipped phone handsets can be paired with the TM or the Bluetooth 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 TM or Bluetooth 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
- Audio (radio and CD)
- Note pad
- Touch screen display
- Rear seat entertainment
- Navigation.
On vehicles without the navigation system, the voice recognition software is contained in the TM. The microphone is hardwired to the IHU which in turn is connected to the TM via the MOST ring. The TM will only operate voice control of the telephone system. The TM has limited language capability with German, French, Italian, Spanish, USA and UK supported.
On vehicles with the navigation system, the voice recognition software is contained in the navigation computer. The microphone is hardwired to both the navigation computer and the IHU. The navigation computer will allow voice control of the telephone system, the audio system, the rear seat entertainment and the navigation system. The navigation computer supports the same languages as the TM but with the addition of Japanese, Dutch and USA with male and female voices.
The voice recognition system enables the driver to activate important functions of the telephone 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 telephone system.
Telephone Voice Recognition Functions
The telephone can be accessed and controlled by the voice recognition system as follows:
- Dial Number This allows the user to dial a number (of up to 20 digits) by digit entry using voice commands of between 'zero' and 'nine'. An edit facility allows changes to be made if an incorrect digit has been entered by using the command 'correction'. Numbers of up to 20 digits can be entered. If more than 20 digits are entered the system responds with a message 'Number too long' in the message center.
- Phone Book The phone book allows the user to add up to 50 'nametags' with stored phone numbers. The nametags are user identifiable association names for the allocated phone number. This phone book has no connection with the phone book stored on the phone handset's SIM card or phone memory.
Voice Recognition Settings
A number of settings allow the user to customize the voice recognition system as follows:
- Voice Feedback - On/Off This feature allows the user to switch audible feedback on or off for most functions, with the exception of some necessary function which must have feedback to operate correctly.
- Replay The replay command requests the voice recognition system to repeat the last dialogue response within a list in both audible and associated text feedback.
- Notepad The notepad function allows the user to record a series of 10 notes for up to 5 minutes. The user can replay or delete the notes in the order in which they were recorded. It also allows the user to delete the entire contents of the notepad.
- Traffic Message Channel (TMC) The TMC system is part of the navigation system (when fitted). The TMC system provides real time traffic information to the navigation system. The TMC voice commands can be used to switch the TMC On or Off.
TELEPHONE SYSTEM CONTROL DIAGRAM
NOTE: A = Hardwired, C - DS2 diagnostic bus, D = HS CAN bus, K = I Bus, P = MOST
