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GF82.70-P-2019G Mercedes-Benz Contact, Function




GF82.70-P-2019G Mercedes-Benz Contact, Function
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
1 Circuit status
2 Telephone, signal
3 Bluetooth, signal
4 Multifunction steering wheel button group, signal
5 VCS switch, signal
6 Hands-free system microphone group, signal
7 Instrument cluster, message
8 Audio, signal
9 Kilometer reading and maintenance computer information, signal
A1 Instrument cluster
A2 Radio (with code (EF5) MB Audio 20 CD radio, (NTG 2.5))
A2/22 Telephone and fax antenna (except model 463.202/303/306 with code (EH2) Comfort telephony)
A2/91 Bluetooth antenna
A28/3 E-net compensator (with code (EH2) Comfort telephony)
A34/7 Bluetooth module (with code (EH2) Comfort telephony)
A34/15 UPCI [UHI] cell phone holder (Universal Portable Cell Phone Interface) (accessories)
A40/3 COMAND operating, display and controller unit (with code (EU1) COMAND, APS)
A67b1 Hands-free system microphone group
H4/1 Left front door speaker
H4/2 Right front door speaker
H4/5 Left rear door speaker (in model 463.236/237/270/271/ 341/346)
H4/6 Right rear door speaker (in model 463.236/237/270/271/ 341/346)
H4/7 Left rear speaker
H4/8 Right rear speaker
H4/27 Center cockpit speaker (centerfill)
H4/29 Subwoofer speaker (with code (EU9) Surround sound system (harman/kardon Logic 7))
H4/33 Left cockpit tweeter
H4/34 Right cockpit tweeter
H4/37 Left rear door tweeter (with code (EU9) Surround sound system (harman/kardon Logic 7))
H4/38 Right rear door tweeter (with code (EU9) Surround sound system (harman/kardon Logic 7))
N40/9 Sound system amplifier (with code (EU9) Surround sound system (harman/kardon Logic 7))
N73 EZS control unit
N80 Steering column tube module
N135 LIN converter
S93/2 VCS switch
S110 Left multifunction steering wheel button group
S111 Right multifunction steering wheel button group
CAN B Interior CAN
LIN Local interconnect network
MOST Media Oriented System Transport

Depending on the equipment installed one of the following control units will be installed, hereafter referred to as the "audio unit":
- Radio (with code (EF5) MB Audio 20 CD radio, (NTG 2.5))
- COMAND operating, display and controller unit (with code (EU1) COMAND, APS)

Function requirements, general
^ Status of circuit 30 "ON" or circuit 15R "ON".
^ One mobile phone network is available in sufficient strength and quality
^ Mobile phone system operating error-free
^ Mobile phone and audio equipment switched on
^ Compatible mobile phone inserted into UPCI [UHI] cell phone holder (Universal Portable Cell Phone Interface), which is connected to the Bluetooth module (with code (EH2) Comfort telephony), or Bluetooth-capable mobile phone authorized in vehicle and on the audio equipment (without code (EH2) Comfort telephony)
^ Correct Personal Identification Number (PIN) entered, if set on the mobile phone
^ Enabled Subscriber Identification Module (SIM) card inserted in mobile phone
^ Telephone number of the Service Center entered as a fixed, reserved telephone book entry in the telephone book or in the address book of the audio unit or in the telephone book of the mobile phone
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:
- www.mercedes-benz-mobile.com
The entries in either of the two "books" below are always available; they can only be removed by deleting:
- Telephone book (with code (EF5) MB Audio 20 CD radio, (NTG 2.5))
- Address book (with code (EU1) COMAND, APS)
With basic telephony, without code (EH2) Comfort telephony, it is possible to gain read access to the telephone book of the mobile phone if the mobile phone supports the Bluetooth profile Phonebook Access Profile (PBAP). Otherwise, the entries in the mobile phone's phone book can only be transmitted to the audio equipment via "vCards".

Mercedes-Benz Contact, general
The "Mercedes-Benz Contact" function provides user-friendly access to the services provided by Mercedes-Benz Services by means of a fixed, reserved telephone book entry in the telephone book or in the address book of the audio equipment or the telephone book of the mobile phone. The "Mercedes-Benz Contact" function utilizes the handsfree system (via Bluetooth) and supports the service acceptance process in the service center or, at a later point in time, in the workshop as well, by switching to voice output and synchronously transmitting vehicle data.
The "Mercedes-Benz Contact" function consists of the following subfunctions:
^ Selecting fixed, reserved telephone book entry function sequence via the buttons on the mobile phone
^ Selecting fixed, reserved telephone book entry function sequence via the telephone buttons or the keypad on the audio equipment
^ Function sequence, select fixed, reserved telephone book entry via the left multifunction steering wheel button group and right multifunction steering wheel button group
^ Function sequence, select fixed, reserved telephone book entry via voice control system (VCS [SBS]) (with code (EU1) COMAND, APS)
^ Establish telephone call in handsfree mode and transmit data to the service center function sequence
^ Terminate call function sequence using mobile phone buttons
^ Terminate call function sequence over telephone buttons or keypad on audio equipment
^ Function sequence, terminate call using multifunction steering wheel button groups
^ Terminate call function sequence via the service center
^ Terminate telephone call function sequence in handsfree mode with the service center

The system is described using comfort telephony as an example, with code (EH2) Comfort telephony. Differences from the basic telephony are marked by the symbol.

Operating instructions
The fixed, reserved telephone book entry in the telephone book or in the address book of the "audio unit" or in the telephone book of the mobile phone is selected via one of the following components:
- Buttons on the mobile phone
- Telephone buttons or keypad on the audio equipment
- Multifunction steering wheel button groups
- Voice control of VCS [SBS] (with code (EU1) COMAND, APS)
The data is transferred after an active telephone call by actuating a number key on the keypad of the "audio unit".

Selecting fixed, reserved telephone book entry function sequence via the buttons on the mobile phone
The fixed, reserved telephone book entry is selected via the buttons on the mobile phone or 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.

Selecting fixed, reserved telephone book entry function sequence via the telephone buttons or the keypad on the audio equipment
After dialing the fixed, reserved telephone book entry using the telephone buttons on the audio equipment and pressing the "Accept phone call" button or by selecting the telephone function using the keypad on the audio equipment and then activating the "SEND" function, the telephone call is established in hands-free mode.
The "Telephone (Tel)" base function is activated via the "Tel" hardkey on the audio equipment or the "Tel" menu item in the application bar using the keypad on the audio equipment and then shown in the display of the audio equipment.
Here, the user has the following options of selecting the fixed, reserved telephone book entry:
- Enter the telephone number using the keypad of the audio equipment via the speller that is provided
- Search for telephone number using "Name" menu entry in the phone book
- 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
The fixed, reserved telephone book entry can be selected in the telephone book or address book and in the call lists by scrolling up and down. The control signals of the telephone keys or the keypad on the audio unit are processed internally. The display of the menu item on the display of the audio equipment also takes place internally.

Selecting fixed, reserved telephone book entry function sequence via the multifunction steering wheel button group
The telephone book or the address book is selected by pressing the system selection (S110s3) button via the selection menu in the instrument cluster. The fixed, reserved telephone book entry is selected by scrolling forward and back in the address book or the telephone book of the mobile phone using the scroll forward and back (S110s1) key.
The accept/terminate phone call button (S111s3) can be used to establish the telephone call in the hands-free system.
The control signals of the multifunction steering wheel button groups are forwarded to the audio equipment via the following components:
- Direct line
- LIN converter
- LIN
- Steering column tube module
- Interior CAN
Communication between the "audio unit" and the mobile phone is conducted via:
- Direct line
- Bluetooth antenna
- Bluetooth module
- UHI portable CTEL holder (Universal Handy Interface)
The display in the instrument cluster is performed by the audio equipment via interior CAN.
Communication with the basic telephony takes place between the "audio unit" and the mobile phone in the following way:
- Direct line
- Bluetooth antenna
- Mobile phone antenna

Function sequence, select fixed, reserved telephone book entry 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] switch is forwarded to the audio equipment via the following components:
- Direct line
- Steering column tube module
- Interior CAN
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
- Left front door speaker
- Right front door speaker
- Left rear door speaker
- Right rear door speaker
- Left rear speaker
- Right rear speaker
- Center cockpit speaker (centerfill)
- Subwoofer
- Left cockpit tweeter
- Right cockpit tweeter
- Left rear door tweeter
- Right rear door tweeter
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:
- Left front door speaker
- Right front door speaker
- Left rear door speaker
- Right rear door speaker
- Left rear speaker
- Right rear speaker
- Center cockpit speaker (centerfill)
- Left cockpit tweeter
- Right cockpit tweeter
Establishing a call is activated in the dialog with the VCS [SBS] with the help of voice commands, e.g.
- "Dial number"
- "Redial"
- "Read telephone book"
- "Listen to or delete address book"
- "Open or spell entries"
- "Landline or mobile"
- "Dial"
The voice commands are registered by the hands-free system microphone group and forwarded via a direct line to the audio equipment.
The voice control of the voice control system (VCS [SBS]) is used to establish the telephone call in the hands-free mode.

Establish telephone call in handsfree mode and transmit data to the service center function sequence
When the call has been established successfully, the "audio unit" transmits or receives the mobile phone signals or data in the following way:
- Direct line
- Bluetooth antenna
- Bluetooth module
- UHI portable CTEL holder (Universal Handy Interface)
- Direct line
- E-net compensator (with code (EH2) Comfort telephony)
- Direct line
- Telephone and fax antenna (except model 463.202/303/306 with code (EH2) Comfort telephony or with code (ZU8) USA version) or
- Radio and cell phone antenna splitter (A28/1) (in model 463.202/303/306)
- Direct line
- Radio and cell phone antenna (A28) (in model 463.202/303/306)
After an active call has been established to the service center, the user starts the data transfer.
The data is transferred after the call has been established by actuating a number key on the keypad of the "audio unit". The control signals from the telephone keys or the keypad on the audio equipment are processed internally.
For data transfer purposes, the audio equipment checks the kilometer reading and the maintenance computer information of the instrument cluster via the interior CAN.
In vehicles with code (EU1) COMAND, APS, the navigation data is also transmitted by the navigation module integrated into the audio equipment.
The data is transmitted by the audio equipment by means of Dual Tone Multiple Frequency (DTMF) tones to the service center in the same way as when the call has been established successfully.
After the data has been transferred to the service center, the user can talk to an employee at the service center or the workshop.
The transmitted data is then available to the employee.
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:
- Left front door speaker
- Right front door speaker
- Left rear door speaker
- Right rear door speaker
- Left rear speaker
- Right rear speaker
- Center cockpit speaker (centerfill)
- Subwoofer
- Left cockpit tweeter
- Right cockpit tweeter
- Left rear door tweeter
- Right rear door tweeter
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:
- Left front door speaker
- Right front door speaker
- Left rear door speaker
- Right rear door speaker
- Left rear speaker
- Right rear speaker
- Center cockpit speaker (centerfill)
- Left cockpit tweeter
- Right cockpit tweeter
When in "private mode" the user can make a telephone call without other vehicle occupants being able to hear the conversation. The system switches to "private mode", when the mobile phone is removed from the UPCI [UHI] cell phone holder.
For basic telephony, the "audio unit" receives or transmits the mobile phone signals or data in the following way:
- Direct line
- Bluetooth antenna
- Mobile phone antenna

Terminate call function sequence using 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.

Terminate call function sequence over telephone buttons or keypad on audio equipment
The telephone call is terminated by pressing the "END" button on the audio equipment or by activating the "END" function in the "Telephone (Tel)" base function. The control signals of the telephone keys or the keypad on the audio unit are processed internally.

Function sequence, terminate call using multifunction steering wheel button groups
The accept/terminate phone call button terminates the telephone call. The control signals of the multifunction steering wheel button groups are forwarded to the audio equipment via the following components:
- Direct line
- LIN converter
- LIN
- Steering column tube module
- Interior CAN

Terminate call function sequence via the service center
The employee in the service center or the workshop can also terminate the telephone call. This procedure will run externally.

Terminate telephone call function sequence in handsfree mode with the service center
After a phone call has been terminated, the "audio unit" interrupts the transmission or reception of the mobile phone signals or data.
This takes place internally in the "audio unit".