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Home >> Mercedes Benz >> 2011 >> E 350 Coupe (207.356) V6-3.5L (272.961) >> Repair and Diagnosis >> Accessories and Optional Equipment >> Cellular Phone >> Description and Operation >> GF82.70-P-2017CAJ Mobile Phone System, Accepting Calls, Rejecting Calls and Toggling, Function

GF82.70-P-2017CAJ Mobile Phone System, Accepting Calls, Rejecting Calls and Toggling, Function




GF82.70-P-2017CAJ Mobile Phone System, Accepting Calls, Rejecting Calls and Toggling, Function
MODEL 207.3 /4
- with CODE (527) COMAND APS with single DVD drive (with navigation)
- with CODE (498) Japan version up to model year 2011 /YoM 10

Function requirements, general
^ Circuit 30g ON
^ A mobile telephone network available in adequate strength and quality
^ Compatible mobile phone connected over the Japan adapter cable electrical connector (X39/46) to the communications control unit (N123/6) or Bluetooth-compatible mobile phone in the vehicle and authorized (not connected to the adapter cable electrical connector)
The mobile phone used must support the hands-free profile (HFP) 1.0 or 1.5. The mobile phones that meet these requirements are listed at http://www.mercedes-benz.com/connect.
The function sequences are described using a mobile phone connected to the adapter cable electrical connector as an example.
Deviations to this are identified in the following text by the symbol.

Phone system, accepting calls, rejecting calls and toggling, general
The user can set up a telephone connection for initiating, terminating or toggling a call to another person in the cellular telephone system or fixed-line network. The following components are available for operating the mobile phone system:
- Control buttons on the mobile phone
- Function keys and keypad on the COMAND controller unit (A40/3)
- Audio/COMAND control panel (A40/9)
- Group of buttons on right of multifunction steering wheel (S111)
- Voice control of the voice control system (VCS [SBS])
The mobile phone receives incoming calls via the following route:
- Multifunction antenna (A28/11)
- Direct line
- Adapter cable electrical connector
For a mobile phone operated via Bluetooth (R), the phone receives the call signal via mobile phone's own antenna.
Incoming calls are signaled acoustically at the speaker system and visually in the Audio/COMAND display (A40/8) as well as in the multifunction display (A1p13) of the instrument cluster (A1).
When the phone call signal sounds, the COMAND controller unit reduces the volume of the currently active audio source (e.g. for radio mode) by L = 15 dB. Only after the call has been accepted, the COMAND controller unit mutes (MUTE) the currently active audio source.
The COMAND controller unit actuates the Audio/COMAND display over the low voltage differential signaling (LVDS) line.
The data required for displaying in the multifunction display are sent by the COMAND controller unit over the interior CAN (CAN B) to the instrument cluster.
The mobile phone display shows information on the caller, which is forwarded by the mobile phone to the COMAND controller unit via the following route:
- Adapter cable electrical connector
- Direct line
- Communication control unit
- Direct line
A mobile phone operated via Bluetooth (R) receives the call signal via the Bluetooth(R) mobile phone antenna.The call signal is then forwarded to the COMAND controller unit in the via the following route:
- Bluetooth antenna (A2/91)
- Direct line
Telephone calls can be made in handsfree mode or "Private Mode". In handsfree mode, audio output takes place via the speaker system of the vehicle. The currently active audio source is muted (MUTE).
On vehicles without code (810) Sound system, the corresponding audio signals are output over the following speakers:
- Left door tweeter (H4/1h1)
- Left door bass speaker (H4/1h2)
- Right door tweeter (H4/2h1)
- Right door bass speaker (H4/2h2)
On vehicles with code (810) Sound system the COMAND control unit transmits the audio signals via media-oriented system transport (MOST) to the sound system amplifier control unit (N40/3), which amplifies and output them over the following speakers:
- Door tweeter
- Door bass speaker
- Rear tweeter
- Rear bass speaker
- Center dashboard speaker (H4/27)
In "Private Mode" the user makes a telephone call without other vehicle occupants being able to hear the telephone conversation. "Private Mode" is activated if the mobile phone is disconnected from the adapter cable electrical connector. The handsfree mode is deactivated.
The accept call and reject call function is made up of the following subfunctions:
^ Function sequence for accepting call
^ Function sequence for toggling
^ Function sequence for rejecting call

Function sequence for accepting call
A telephone call can be accepted using the following controls:
- Control buttons on the mobile phone
- Function keys on the COMAND controller unit
- Audio/COMAND control panel
- Right multifunction steering wheel button group
- Voice input via VCS [SBS]
A telephone call can be accepted on the mobile phone by pressing the "Accept" control button on the mobile phone. The control signal is processed internally in the mobile phone.
With a mobile phone operated via Bluetooth (R), the control signals from the buttons on the mobile phone are processed internally and forwarded to the COMAND controller unit via the following route:
- Bluetooth antenna
- Direct line
Press the "Accept" function key on the COMAND controller unit to accept a telephone call via the COMAND controller unit.
The control signal is internally processed by the COMAND controller unit and forwarded to the mobile phone via the following route:
- Direct line
- Communication control unit
- Direct line
- Adapter cable electrical connector
On a mobile phone operated via Bluetooth(R), communication takes place between the COMAND controller unit and the mobile phone via the following route:
- Direct line
- Bluetooth antenna
A telephone call can be accepted through the Audio/COMAND control panel by selecting the "Accept" field.
The Audio/COMAND control panel sends the control signal over the telematics CAN (CAN A) to the COMAND controller unit. The COMAND controller unit then forwards it to the mobile phone via the following route:
- Direct line
- Communication control unit
- Direct line
- Adapter cable electrical connector
On a mobile phone operated via Bluetooth(R), communication takes place between the COMAND controller unit and the mobile phone via the following route:
- Direct line
- Bluetooth antenna
A telephone call can be accepted using the right multifunction steering wheel button group by pressing the right button on the accept/terminate phone call button (S111s3). The control signals of the accept/terminate phone call button are forwarded to the COMAND controller unit via the following route:
- Steering wheel electronics (N135)
- Steering LIN (LIN E1)
- Steering column module control unit (N80)
- Chassis CAN (CAN E)
- Instrument cluster
- Interior CAN
The COMAND controller unit then routes the control signal to the mobile phone in the following manner:
- Direct line
- Communication control unit
- Direct line
- Adapter cable electrical connector
On a mobile phone operated via Bluetooth(R), communication takes place between the COMAND controller unit and the mobile phone via the following route:
- Direct line
- Bluetooth antenna
The instrument cluster shows information on the caller, if the "Tel" menu was activated beforehand.
A telephone call can only be accepted through the voice control system if the voice control system has been switched on. The voice control system is activated by pressing the voice control system ON button (S111s4). A signal tone is emitted after the voice control system has been activated.
The control signal of the voice control system on button is forwarded to the COMAND controller unit via the following route:
- Steering wheel electronics
- Steering LIN
- Steering column module control unit
- Chassis CAN
- Instrument cluster
- Interior CAN
The call is only accepted with the corresponding voice command.
The voice commands are recorded by the handsfree system microphone (A67b1) and forwarded via a direct line to the COMAND controller unit.
The COMAND controller unit then forwards the voice commands to the mobile phone via the following route:
- Direct line
- Communication control unit
- Direct line
- Adapter cable electrical connector
The individual voice commands are listed in the "Linguatronic operator's manual".
On a mobile phone operated via Bluetooth(R), communication takes place between the COMAND controller unit and the mobile phone via the following route:
- Direct line
- Bluetooth antenna

Function sequence for toggling
The user can switch back and forth between telephone calls with 2 people. While the user talks to one person on the line, the connection to the other is put on hold. However, voice transmission is interrupted. If a call is received while a call is already underway, it is shown on the Audio/COMAND display. The telephone call can then be accepted or rejected.
This function can be controlled using the following components:
- Control buttons on the mobile phone
- Function keys on the COMAND controller unit
- Audio/COMAND control panel
- Right multifunction steering wheel button group
The control signals of the mobile phone's control buttons are internally processed and forwarded to the COMAND controller unit via the following route:
- Adapter cable electrical connector
- Direct line
- Communication control unit
- Direct line
On a mobile phone operated via Bluetooth(R), communication takes place between the mobile phone and the COMAND controller unit via the following route:
- Bluetooth antenna
- Direct line
The control signals from the function keys are processed internally by the COMAND controller unit and forwarded to the mobile phone via the following route:
- Direct line
- Communication control unit
- Direct line
- Adapter cable electrical connector
On a mobile phone operated via Bluetooth(R), communication takes place between the COMAND controller unit and the mobile phone via the following route:
- Direct line
- Bluetooth antenna
The toggle function can be operated using the Audio/COMAND control panel by selecting the "Accept" or "Reject" field. The Audio/ COMAND control panel sends the control signals over the telematics CAN (CAN A) to the COMAND controller unit. The COMAND controller unit then forwards it to the mobile phone via the following route:
- Direct line
- Communication control unit
- Direct line
- Adapter cable electrical connector
On a mobile phone operated via Bluetooth(R), communication takes place between the COMAND controller unit and the mobile phone via the following route:
- Direct line
- Bluetooth antenna
The control signals of the accept/terminate phone call button are forwarded to the COMAND controller unit via the following route:
- Steering wheel electronics
- Steering LIN
- Steering column module control unit
- Chassis CAN
- Instrument cluster
- Interior CAN
The COMAND controller unit then forwards them to the mobile phone via the following route:
- Direct line
- Communication control unit
- Direct line
- Adapter cable electrical connector
On a mobile phone operated via Bluetooth(R), communication takes place between the COMAND controller unit and the mobile phone via the following route:
- Direct line
- Bluetooth antenna

Function sequence for rejecting call
An incoming phone call can be rejected using the following controls:
- Control buttons on the mobile phone
- Function keys on the COMAND controller unit
- Audio/COMAND control panel
- Right multifunction steering wheel button group
Pressing the "Hang up" control button on the mobile phone rejects the incoming phone call. The control signal of the "Hang up" control button is processed internally by the mobile phone.
Pressing the "Hang up" function key on the COMAND controller unit rejects an incoming phone call. The control signal of the "Hang up" function key is processed internally by the COMAND controller unit.
The COMAND controller unit then sends the control signal to the mobile phone via the following route:
- Direct line
- Communication control unit
- Direct line
- Adapter cable electrical connector
On a mobile phone operated via Bluetooth(R), communication takes place between the COMAND controller unit and the mobile phone via the following route:
- Direct line
- Bluetooth antenna
Selecting the "Reject" field and then confirming it on the Audio/ COMAND control panel rejects an incoming phone call. The Audio/ COMAND control panel sends the control signal over the telematics CAN (CAN A) to the COMAND controller unit. The COMAND controller unit then forwards it to the mobile phone via the following route:
- Direct line
- Communication control unit
- Direct line
- Adapter cable electrical connector
On a mobile phone operated via Bluetooth(R), communication takes place between the COMAND controller unit and the mobile phone via the following route:
- Direct line
- Bluetooth antenna




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