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Setting up/ending phone call, function - GF82.70-P-2008CW

MODEL 204.0/2 with CODE (523) MB Audio 20 radio Basic telephony 

MODEL 204.0/2 with CODE (510) Audio 20 with CD changer Basic telephony 

MODEL 204.0/2 with CODE (525) MB Audio 50 APS radio Basic telephony 

MODEL 204.0/2 with CODE (511) Audio 50 APS with DVD changer Basic telephony 

MODEL 204.0/2 with CODE (527) COMAND APS with single DVD drive (with navigation) Basic telephony 

MODEL 204.0/2 with CODE (512) COMAND APS with DVD changer Basic telephony 

MODEL 204.0 with CODE (494) USA version Basic telephony 

MODEL 204.0/2 with CODE (386) Mobile phone Comfort telephony 

MODEL 204.0 with CODE (389) Mobile phone preinstallation with universal interface, USA/Canada Comfort telephony 

Function requirements 

IMPORTANT The address book entries are permanently available. They can only be removed by being deleted.

IMPORTANT Depending on equipment installed, one of the following control units is installed:

The function description uses the term "master control unit".

Operating instruction 

A phone call can be established and ended via:

Establish call function sequence over mobile phone buttons 

The telephone number is entered using the buttons on the mobile phone or to select number's from the mobile phone's phone book. The "Accept phone call" button is pressed. The telephone call is then established in handsfree mode.

The control signals from the buttons on the mobile phone are processed internally in the mobile phone.

Function sequence for establishing a call via telephone buttons on the "master control unit" 

After dialing the telephone number using the telephone buttons on the "master control unit" and pressing the "Accept phone call" button, the phone call is established in handsfree mode. The control signals from the telephone buttons on the "master control unit" are processed internally in the "master control unit".

Establish call function sequence over Audio/COMAND control panel 

The telephone function is selected using the "ComTEL/telephone" menu item. This is done with the aid of the "TEL" button on the "master control unit", and it is then shown on the Audio/COMAND display (A40/8). The control signals from the telephone buttons on the "master control unit" are processed internally. The menu item is displayed on the Audio/COMAND display by the "master control unit" via a low voltage differential signaling (LVDS) line.

The following ways of dialing a telephone number are now available to the user:

Activating the "SEND" function establishes the telephone call in the handsfree mode.

The control signals from the Audio/COMAND control panel are forwarded to the "master control unit" via the telematics CAN.

IMPORTANT The user can scroll forward and back in the address book and in the "Call lists" using the Audio/COMAND control panel to select the name of the person to be called.

Function sequence for establishing a call via multifunction steering wheel button groups with comfort telephony 

The mobile phone's phone book is selected by pressing the system selection button (S110s3) via the selection menu in the instrument cluster (A1) (except Entry-Line). The name of the person to be called is selected by scrolling forward and back in the mobile phone's phone 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 from the multifunction steering wheel button groups are forwarded to the "master control unit" via the following components:

Communication between the "master control unit" and the mobile phone is conducted via:

The display in the instrument cluster (except Entry-Line) takes place from the "master control unit" via the interior CAN.

Function sequence for establishing a call via VCS [SBS], with code (511) Audio 50 APS with DVD changer, with code (527) COMAND APS with single DVD drive (with navigation) or with code (512) COMAND APS with DVD changer and with code (810) Sound system 

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 control signal from the VCS [SBS] on button is forwarded to the "master control unit" via the following components:

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

The signal tone is transmitted from the "master control unit" via the Media Oriented System Transport (MOST) to the sound system amplifier control unit (N40/3).

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

For example, the following voice commands or voice tags are available:

The voice commands are acquired by the voice control system microphone (B25/7) and forwarded via a discrete line directly to the "master control unit".

The voice control of the voice control system is used to establish the telephone call in the handsfree mode.

IMPORTANT In vehicles with the following codes, the listed voice commands apply likewise:

IMPORTANT In vehicles except code (810) Sound system, the signal tone is transmitted directly from the "master control unit" via discrete lines to the following speakers:

Function sequence for establishing a phone call in handsfree mode, with comfort telephony and with code (810) Sound system 

After the call has been established, the "master control unit" transmits or receives the mobile phone signals or data in the following way:

The voice input in handsfree mode is acquired by the VCS [SBS] microphone and forwarded via a discrete line directly to the "master control unit".

The voice output takes place from the "master control unit" via MOST to the sound system amplifier control unit. From there, the voice output is transmitted via discrete lines to the following speakers:

IMPORTANT When in "private mode" the user can make a telephone call without other vehicle occupants being able to hear the conversation.

IMPORTANT In vehicles except code (810) Sound system, the voice output takes place directly from the "master control unit" via discrete lines to the following speakers:

IMPORTANT With basic telephony, the "master control unit" transmits or receives the mobile phone signals or data in the following way:

Terminate call function sequence over mobile phone buttons 

Pressing the "END" button on the mobile phone terminates the telephone call. The control signals from the buttons on the mobile phone are processed internally.

Function sequence for ending a call via telephone buttons on the "master control unit" 

The phone call is ended by pressing the "END" button on the "master control unit". The control signals from the telephone buttons on the "master control unit" are processed internally.

Terminate call function sequence over Audio/COMAND control panel 

Activating the "END" function in the "ComTEL/telephone" menu item terminates the telephone call. The control signals from the Audio/COMAND control panel are forwarded to the "master control unit" via the telematics CAN.

Terminate call function sequence over multifunction steering wheel button groups 

The accept/terminate phone call button terminates the telephone call. The control signals from the multifunction steering wheel button groups are forwarded to the "master control unit" via the following components:

Function sequence for ending a phone call in handsfree mode 

After a phone call has been ended, the "master control unit" interrupts the transmission or reception of the mobile phone signals or data. This takes place internally in the "master control unit".

REFER TO SYSTEM WIRING DIAGRAMS Electrical function diagram for mobile phone, establishing a call, ending, accepting With code (386) Mobile phone
With code (512) COMAND APS with DVD changer
with CODE (810) Sound system
Comfort telephony		 PE82.70-P-2053-99FAA
With code (389) Mobile phone preinstallation with universal interface, USA/Canada
With code (512) COMAND APS with DVD changer
with CODE (810) Sound system
Comfort telephony
Model 204.0 with code (359) TELE AID emergency call system		 PE82.70-P-2053-99FAB
  Front central operating unit, component description A40/9 GF54.21-P-4500CW
  Cockpit central display, component description A40/8
with code (523) MB Audio 20 radio
with CODE (494) USA version
With code (510) Audio 20 with CD changer with CODE (525) MB Audio 50 APS radio With code (511) Audio 50 APS with DVD changer
Entry		 GF54.30-P-6100CW
A40/8
With code (527) COMAND APS with Single
DVD disk drive (with navigation)
With code (512) COMAND APS with DVD changer High		 GF54.30-P-6100CWH
  Radio control panel component description A2
with code (523) MB Audio 20 radio		 GF82.60-P-3116CW 
A2
with CODE (494) USA version		 GF82.60-P-3116CWA 
A2
With code (510) Audio 20 with CD changer		 GF82.60-P-3116CWB 
  Radio/navigation unit, component description A2/56
with CODE (525) MB Audio 50 APS radio		 GF82.61-P-4111CW 
A2/56
With code (511) Audio 50 APS with DVD changer		 GF82.61-P-4111CWA 
  Audio tuner control unit, component description N40/3
with CODE (810) Sound system		 GF82.62-P-3132CWS 
  Telephone and GPS roof antenna component description A28/11
With code (386) Mobile phone
With code (389) Mobile phone preinstallation with universal interface, USA/Canada		 GF82.62-P-4119CW 
  Bluetooth antenna component description A2/91 GF82.62-P-4201CW 
  Frequency switchover control unit, component description N96
Model 204.0
With code (359) TELE AID emergency call system
With code (389) Mobile phone preinstallation with universal interface, USA/Canada		 GF82.62-P-4204CWU 
  Speaker system, component description H4/1, H4/2, H4/3, H4/4, H4/27 Except code (810) Sound system GF82.62-P-4220CW 
H4/1, H4/2, H4/3, H4/4, H4/27, H4/29, H4/54, H4/57 with CODE (810) Sound system GF82.62-P-4220CWS 
  Handsfree system microphone, component description B25/7 GF82.70-P-4121CW 
  Mobile phone bracket, component description A34/15
With code (386) Mobile phone
With code (389) Mobile phone preinstallation with universal interface, USA/Canada		 GF82.70-P-5300CW 
  COMAND controller unit, component description A40/3
With code (527) COMAND APS with Single DVD disk drive (with navigation)		 GF82.85-P-3136CW
A40/3
With code (512) COMAND APS with DVD changer		 GF82.85-P-3136CWA
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