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Accept call and reject call with the mobile phone system, function - GF82.70-P-2018G

MODEL 463.306 /336 /346 up to 31.5.12 except CODE (ZJ1) Japan version as of Model Year 2011 /YoM 10 

MODEL 463.202 /222 /236 /237 /270 /271 /303 /340 /341 up to 31.5.12 except CODE (ZJ1) Japan version as of Model Year 2009 /YoM 08 

Shown on model 463.236 

Fig 1: Accept Call And Reject Call With Mobile Phone System Function Diagram
G07891410Courtesy of MERCEDES-BENZ USA

IMPORTANT Depending on the equipment installed one of the following control units will be installed, hereafter referred to as the "audio unit":

Function requirements, general 

IMPORTANT So that a bluetooth-capable mobile phone that is authorized on the audio equipment can be operated in the vehicle, the mobile phone must support the hands-free profile (HFP) 1.0 or 1.5. More information is available under:

General information on accepting call and rejecting a call 

The mobile phone can be used by the user to initiate or terminate a telephone call to another person in the mobile phone system network or the fixed-line network.

The "Accept call or reject call with the mobile phone system" function comprises the following subfunctions:

The system is described using comfort telephony as an example, with code (EH2) Comfort telephony. Deviations for basic telephony, without code (EH2) Comfort telephony) are identified by the symbol IMPORTANT .

Operating instructions 

A call is accepted or rejected via:

Function sequence, call signal 

The mobile phone receives a call signal via the following route:

Information about the caller is displayed on the mobile phone's screen. The display on the mobile phone's screen is forwarded internally.

At the same time, the call signal is forwarded to the audio equipment via the following route:

In vehicles with code (EU9) Surround sound system (harman/ kardon Logic 7), the audio equipment transmits the call tone to the sound system amplifier via MOST. From there, the ring tone is transmitted via direct lines to the following speakers:

At the same time, the audio equipment mutes the currently active audio source (e.g. in radio mode) (MUTE). This takes place internally in the "audio unit".

The caller identification is displayed by the audio equipment on the display of the audio equipment.

The caller ID is also displayed via the interior CAN in the instrument cluster.

IMPORTANT In vehicles without code (EU9) Surround sound system (harman/kardon Logic 7), the call tone is transmitted directly from the audio equipment via direct lines to the following speakers:

IMPORTANT With basic telephony, the mobile phone receives the call signal via the mobile phone antenna. The call signal is then forwarded to the "audio unit" in the following way:

Accept call function sequence using mobile phone buttons 

Pressing the "Accept call" button on the mobile phone serves to accept the call in hands-free mode. The control signals from the buttons on the mobile phone are processed internally.

Accept call function sequence over telephone buttons or keypad on audio equipment 

The call signal results in the caller identification being displayed on the screen of the audio equipment. When the "Accept phone call" button on the audio equipment is pressed or the "Accept" function in the "Telephone (Tel)" base function is selected via the keypad on the audio equipment, the call is accepted in hands-free mode.

The control signals from the buttons on the "audio unit" are processed internally.

Function sequence, accept call using multifunction steering wheel button groups 

The call is accepted in hands-free mode by pressing the accept/ terminate phone call button (S111s3). The control signal from the accept/terminate phone call button is forwarded to the audio equipment via the following components:

Function sequence, accept call via VCS [SBS] (with code (EU1) COMAND, APS) 

The voice control is activated by pressing the VCS [SBS] switch. The control signal from the VCS [SBS] ON switch is forwarded to the audio equipment via the following components:

A signal tone is emitted after the voice control system has been activated.

In vehicles with code (EU9) Surround sound system (harman/ kardon Logic 7), the signal tone is transmitted by the audio equipment to the sound system amplifier via MOST.

From there, the signal tone is transmitted via direct lines to the following speakers:

IMPORTANT In vehicles without code (EU9) Surround sound system (harman/kardon Logic 7), the signal tone is transmitted directly from the audio equipment via direct lines to the following speakers:

The call is only accepted with the corresponding voice command. The voice commands are registered by the hands-free system microphone group and forwarded via a direct line to the audio equipment.

IMPORTANT The individual voice commands are listed in the "Linguatronic operator's manual".

Function sequence, telephone call in hands-free mode 

After the call has been accepted, the audio equipment receives or transmits the mobile phone signals or data via the following route:

The voice input in hands-free mode (except in "private mode") is registered by the hands-free system microphone group and forwarded via a direct line to the audio equipment.

The voice input in hands-free mode is registered by the hands-free system microphone group and forwarded via a direct line to the audio equipment.

In vehicles with code (EU9) Surround sound system (harman/ kardon Logic 7), the voice output is transmitted by the audio equipment to the sound system amplifier via MOST. From there, the voice output is transmitted via direct lines to the following speakers:

IMPORTANT In vehicles without code (EU9) Surround sound system (harman/kardon Logic 7), the voice output is transmitted directly from the audio equipment via direct lines to the following speakers:

IMPORTANT For basic telephony, the "audio unit" receives or transmits the mobile phone signals or data in the following way:

IMPORTANT In general, the telephone connection is established in handsfree mode for basic telephony and for comfort telephony after accepting the call.

With comfort telephony, if the mobile phone is taken out of the UPCI [UHI] cell phone holder after establishing the phone connection in hands-free mode and thus disconnected from the audio equipment, then the phone call is conducted in "private mode".

With comfort telephony, if the mobile phone is inserted into the UPCI [UHI] cell phone holder again during an ongoing phone call, the phone call is conducted again in hands-free mode.

Reject call function sequence using mobile phone buttons 

Pressing the "End" button on the mobile phone rejects the call. The control signals from the buttons on the mobile phone are processed internally.

Reject call function sequence over telephone buttons or keypad on audio equipment 

The call is rejected by pressing the "End" button on the audio equipment or by activating the "END" function in the "Telephone (Tel)" base function. The control signals from the telephone buttons on the "audio unit" are processed internally.

Function sequence, reject call using multifunction steering wheel button groups 

Pressing the accept/terminate phone call button rejects the call.

The control signal from the accept/terminate phone call button is forwarded to the audio equipment via the following components:

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