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GF82.70-P-0007FLK Mobile Phone System, Function
- with CODE (527) COMAND APS with single DVD drive (with navigation)
- with CODE (498) Japan version
- Basic telephony
Function requirements
^ Circuit 30g ON
^ A mobile telephone network available in adequate strength and quality
^ Mobile phone with Bluetooth capability in vehicle and authorized at the COMAND controller unit (A40/3)
In order to be able to operate a Bluetooth-compatible mobile phone that is authorized on the "audio equipment" in the vehicle, the mobile phone must support hands-free profile (HFP) 1.0 or 1.5. More information can be found at:
http://www.mercedes-benz.com/connect
General
For simple and fast integration of a mobile phone into the vehicle, the COMAND controller unit supports the Bluetooth(R) standardized network technology. Bluetooth(R) is a worldwide open standard for connecting Bluetooth(R) devices (e.g. mobile phone) wirelessly and is based on radio technology in the 2.4 GHz range. One advantage of Bluetooth(R), in addition to the wide availability of Bluetooth(R) devices, is the uncomplicated and spontaneous connection of Bluetooth(R) devices to a Bluetooth(R) network (ad-hoc network). The extremely high data security (128-bit encoding) and the relatively limited radius (approx. 10 m) of this type of Bluetooth(R) network are what makes the use of Bluetooth(R) in the vehicle interesting.
The COMAND controller unit can integrate the latest-generation mobile phones via the Bluetooth(R) interface of the mobile phone and the Bluetooth antenna (A2/91) into the vehicle hierarchy. If no mobile phone is authorized via Bluetooth(R) at the COMAND controller unit, a search can be performed via the COMAND controller unit for Bluetooth-compatible devices. If Bluetooth(R) devices were found, the user is notified of all the Bluetooth(R) devices listed in terms of trustworthiness ("trust" or "untrust"). The user can then authorize available Bluetooth(R) devices (log on), interrupt connections to trustworthy Bluetooth(R) devices or deauthorize Bluetooth(R) devices.
The mobile phone system includes the following processes:
^ Switching on and off characteristics
^ Establishing call and terminating call
^ Accepting calls, rejecting calls and toggling
^ Address book
^ "Private mode"
^ "Seamless switch"
Switching on and off characteristics
A mobile phone operated with Bluetooth(R) can be switched on and off only with the buttons on the mobile phone itself. A mobile phone operated with Bluetooth(R) processes the switch-on signal internally in the mobile phone. The lock code inquiry is only shown on the display of the mobile phone, if configured on the mobile phone and if the mobile phone transmits this status. The lock-code can only be entered using the mobile phone buttons. The reception status is received by the mobile phone's antenna.
The display of the lock-code and the reception status as well as the signals of the mobile phone buttons are processed internally in the mobile phone.
The switch-off signal via the mobile phone button is processed internally in the mobile phone. If the rechargeable battery of the mobile phone is empty, the mobile phone is also switched off. This process also runs internally in the mobile phone.
As soon as the mobile phone has logged into the service provider's mobile telephone network, the receive status appears in the audio/ COMAND display (A40/8).
In order to display the receive status the mobile phone transmits the relevant signals to the COMAND control unit via the following route:
- Bluetooth antenna
- Direct line
The COMAND controller unit then actuates the Audio/COMAND display via a low voltage differential signal (LVDS) line.
Function requirements for establishing and terminating a call
^ Mobile phone and COMAND controller unit are switched on
With a mobile phone operated via Bluetooth(R), read access to the phonebook of the mobile phone is possible if the mobile phone supports the Bluetooth(R) Phonebook Access Profile (PBAP).
Establishing call and terminating call
The establish call and terminate call function consists of the following subfunctions:
^ Establish and terminate telephone call via the buttons on the mobile phone
^ Establish and terminate telephone call via the function keys at the COMAND controller unit
^ Establish telephone call via Audio/COMAND control panel (A40/9)
^ Establish and terminate telephone call via left multifunction steering wheel button group (S110) and right multifunction steering wheel button group (S111)
^ Establish telephone call via voice control system (VCS [SBS])
^ Establish telephone call in hands-free mode
^ Terminating a telephone call
Establish and terminate telephone call via the buttons on the mobile phone
On a mobile phone operated via Bluetooth(R), the control signals of the mobile phone buttons are internally processed and not forwarded to the COMAND controller unit. The telephone call is completed in "Private mode" when the mobile phone supports "Private mode" "Private mode" is activated.
In "Private Mode" the user makes a telephone call without other vehicle occupants being able to take part in the conversation, i.e. voice input takes place via the microphone integrated in the mobile phone, and voice output takes place via the speaker integrated in the mobile phone.
Pressing the "END" button on the mobile phone terminates the telephone call (also in hands-free mode). When a telephone call is terminated using the mobile phone buttons, the mobile phone interrupts the transmission or reception of mobile phone signals or data. This process runs internally in the mobile phone.
Establish and terminate telephone call via the function keys at the COMAND controller unit
Dialing the telephone number using the function keys on the COMAND controller unit and pressing the "Accept phone call" button establishes the telephone call in hands-free mode.
The control signals of the function keys at the COMAND controller unit are processed internally and forwarded to the mobile phone via the following route:
- Direct line
- Bluetooth antenna
- Mobile phone Bluetooth antenna
With a mobile phone operated via Bluetooth(R), the phone call is established in "Private mode" if the mobile phone supports "Private mode" and "Private mode" is activated.
Pressing the "END" function key on the COMAND controller unit terminates the telephone call. The control signals from the function keys at the COMAND controller unit are processed internally and are forwarded to the mobile phone in the reverse route.
Establish and terminate telephone call via Audio/COMAND control panel
The "Telephone (TEL)" base function is activated using the "TEL" function key at the COMAND controller unit or the "TEL" menu item in the application bar on the Audio/COMAND display via the Audio/COMAND control panel and then shown on the Audio/ COMAND display. The control signals of the "TEL" function key at the COMAND controller unit are processed internally. The control signals from the Audio/COMAND control panel are forwarded via the telematics CAN (CAN A) to the COMAND controller unit. The menu item is shown on the Audio/COMAND display by the COMAND controller unit via an LVDS line.
The following ways of dialing a telephone number are now available to the user:
- Enter telephone number using available speller
- Search for the telephone number using the "Address book" menu entry in the address book
- Search for the telephone number using the "Call lists" menu entry in the call lists
Activation of the "SEND" function on the Audio/COMAND display establishes the telephone call in hands-free mode.
The control signals from the Audio/COMAND control panel are forwarded over the telematics CAN to the COMAND controller unit. The control signals are then forwarded to the mobile phone via the following route:
- Direct line
- Bluetooth antenna
The user can scroll forward and back in the mobile phone's phone book or the COMAND controller unit's address book and in the call lists using the Audio/COMAND control panel to select the name of the person to be called.
When the "END" function is activated in the "Telephone (TEL)" base function on the Audio/COMAND display, the telephone call is terminated. The control signals from the Audio/COMAND control panel are forwarded over the telematics CAN to the COMAND controller unit.
Establish and terminate telephone call via left multifunction steering wheel button group and right multifunction steering wheel button group
The mobile phone's phone book or the COMAND controller unit's address book is selected by pressing the system selection button (S110s3) via the selection menu in the instrument cluster (A1). The name of the person to be called is selected by scrolling forward and back in the mobile phone's phone book or the COMAND controller unit's address book using the scroll forward / back button (S110s1).
The accept/terminate phone call button (S111s3) can be used to establish the telephone call in the handsfree system.
The control signals of the left multifunction steering wheel button group and right multifunction steering wheel button group are forwarded to the COMAND controller unit via the following components:
- Direct line
- Steering wheel electronics (N135)
- Steering LIN (LIN E1)
- Steering column module control unit (N80)
- Chassis CAN (CAN-E)
- Instrument cluster
- Interior CAN (CAN B)
The control signals are routed by the COMAND controller unit to the mobile phone via the following route:
- Direct line
- Bluetooth antenna
The display in the instrument cluster is generated by the COMAND controller unit over the interior CAN.
The telephone call can then be terminated again using the accept and terminate phone call button.
Establishing telephone call via VCS
Pressing the voice control system ON button (S111s4) of the right multifunction steering wheel button group activates the voice control of the voice control system. The voice control system button control signal is forwarded via the following components to the COMAND controller unit:
- Direct line
- Steering wheel electronics
- Steering LIN
- Steering column tube module control unit
- Chassis CAN
- Instrument cluster
- Interior CAN
A signal tone is emitted after the voice control system has been activated.
The signal tone is transmitted by the COMAND controller unit in vehicles with code (810) Sound system over the Media Oriented System Transport (MOST) to the sound system amplifier control unit (N40/3).
From the sound system amplifier control unit, the signal tone is transmitted by means of an audio signal to the following speakers via direct lines:
- Center instrument panel speaker (H4/27)
- Left rear surround speaker (H4/54)
- Right rear surround speaker (H4/55) (with model 212.2)
- Right rear surround speaker (H4/57) (with model 212.0)
- Left front door sound system tweeter (H4/68)
- Right front door sound system tweeter (H4/69)
- Left rear door sound system tweeter (H4/70)
- Right rear door sound system tweeter (H4/71)
- Left front door sound system midrange and bass speaker (H4/72)
- Right front door sound system midrange and bass speaker (H4/73)
- Left rear door sound system midrange speaker (H4/80)
- Right rear door sound system midrange speaker (H4/81)
For the bass speaker (H4/17) (model 212.0) or for the bass speaker (H4/29) (model 212.2), the audio signal is routed via MOST from the COMAND controller unit to the sound system amplifier control unit and from there to the bass speaker via the rear bass speaker amplifier (N40/9) using direct lines.
On vehicles without code (810) Sound system, the audio signal is output directly by the COMAND controller unit to the following speakers:
- Left front door speaker (H4/1)
- Left front door tweeter (H4/1h1)
- Right front door speaker (H4/2)
- Right front door tweeter (H4/2h1)
- Left rear door speaker (H4/3)
- Left rear door tweeter (H4/3h1)
- Right rear door speaker (H4/4)
- Right rear door tweeter (H4/4h1)
Now different voice commands can be used to search and select a telephone number.
The voice commands are recorded by the handsfree system microphone (A67b1) and forwarded via a direct line to the COMAND controller unit. The control signals are then forwarded to the mobile phone via the following route:
- Direct line
- Bluetooth antenna
The voice control of the voice control system (VCS [SBS]) is used to establish the telephone call in the hands-free mode.
The individual voice commands are listed in the "Linguatronic operator's manual".