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Home >> Mercedes Benz >> 2005 >> SLK 350 (171.456) V6-3.5L (272.963) >> Repair and Diagnosis >> Accessories and Optional Equipment >> Cellular Phone >> Description and Operation >> GF82.70-P-2019RC Mercedes-Benz Contact, Function

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



GF82.70-P-2019RC Mercedes-Benz Contact, Function
- with CODE (386) Mobile phone
- except CODE (830) China version
- Comfort telephony
- with CODE (525) MB Audio 50 APS radio
- with CODE (511) Audio 50 APS with DVD changer
- with CODE (527) COMAND APS with single DVD drive (with navigation)
- except CODE (498) Japan version
- with CODE (512) COMAND APS with DVD changer
- except CODE (494) USA version
- with CODE (510) Audio 20 with CD changer
- Basic telephony


Function requirements
^ Status "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 unit" switched on
^ Compatible mobile phone inserted into UPCI [UHI] cell phone holder (Universal Portable Cell Phone Interface) (A34/15), which is connected to Bluetooth module (A34/7) (comfort telephony), or Bluetooth-capable mobile phone authorized in vehicle and at "audio equipment" (basic 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 address book of the "audio unit" or in the telephone book of the mobile phone

Depending on the equipment installed one of the following control units will be installed, hereafter referred to as the "audio unit":
- Radio (A2), with code (523) MB Audio 20 radio or with code (510) Audio 20 with CD changer
- Radio and navigation unit (A2/56), with code (525) MB Audio 50 APS radio or with code (511) Audio 50 APS with DVD changer
- COMAND operating, display and controller unit (A40/3), with code (527) COMAND APS with single DVD drive (with navigation) or with code (512) COMAND APS with DVD changer

To be able to operate a Bluetooth-capable mobile phone authorized at "audio equipment" in the vehicle, the mobile phone must support Hands Free Profile (HFP) 1.0 or 1.5. More information is available under:
- www.mercedes-benz-mobile.com

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

With the basic telephony, it is possible to gain read access to the telephone book of the mobile phone, if the mobile phone supports the Bluetooth profile Phone Book Access Profile (PBAP). Otherwise, the entries in the telephone book of the mobile phone can only be transmitted to the "audio equipment" via "vCards".

General
The "Mercedes-Benz Contact" function provides a user-friendly access to the services rendered by Mercedes-Benz Services through a fixed, reserved telephone book entry in the address book of the "audio unit" or telephone book of the mobile phone. The "Mercedes-Benz Contact" function utilizes the hands-free 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 unit"
^ Selecting fixed, reserved telephone book entry function sequence via the left multifunction steering wheel button group (S110) and right multifunction steering wheel button group (S111)
^ Selecting fixed, reserved telephone book entry function sequence via the voice control system (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
^ Establish telephone call in hands-free mode and transmit data to the service center function sequence
^ Function sequence, terminate call over mobile phone buttons
^ Terminate call function sequence over telephone keys or keypad on "audio unit"
^ Function sequence, terminate call over multifunction steering wheel button groups
^ Terminate call function sequence over the service center
^ Terminate telephone call function sequence in hands-free mode with the service center

The system is described using the comfort telephony as an example. Differences from the basic telephony are marked by the symbol.

Operating instruction
The fixed, reserved telephone book entry 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 unit"
- Multifunction steering wheel button group
- Voice control of the 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

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 hands-free 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 unit"
After dialing the fixed, reserved telephone book entry by using the telephone buttons on the "audio unit" and pressing the "Accept phone call" button or selecting the telephone function by using the keypad on the "audio unit" and then activating the "SEND" function, the telephone call is established in hands-free mode.
The telephone function is selected via the "ComTEL/Telephone" menu item; this takes place with the aid of the telephone button "TEL" on the "audio unit", and is then displayed on the "audio unit" screen.

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 unit" via the speller offered
- Search for the telephone number using the "Name" menu entry in the address book
- Search for the telephone number using the "Call lists" menu entry in the call lists (accepted, dialed)

The fixed, reserved telephone book entry can be selected in the address book and 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 screen of the "audio unit" also takes place internally.

Selecting fixed, reserved telephone book entry function sequence via the multifunction steering wheel button group
The address book or the telephone book of the mobile phone is selected by pressing the system selection key (S110s3) via the selection menu in the instrument cluster (A1). 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 unit" via the following components:
- Steering LIN
- Steering column tube module (N80)
- Interior CAN

Communication between the "audio unit" and the mobile phone is conducted via:
- Direct line
- Bluetooth antenna (A2/91)
- Bluetooth module
- Cradle

The display in the instrument cluster is conducted by the "audio unit" 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

Selecting fixed, reserved telephone book entry function sequence 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
Voice control of the VCS [SBS] is activated by pressing the VCS [SBS] switch (S93/2) on the steering column tube module. 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.
The signal tone in vehicles with code (810) Sound system, is transmitted by the "audio unit" via Media Oriented System Transport (MOST) to the amplifier for sound system (N40/3).

From there, the signal tone is transmitted over direct lines to the following speakers:
- Left door speaker group (H4/1)
- Right door speaker group (H4/2)
- Left rear speaker (H4/7)
- Right rear speaker (H4/8)
- Center cockpit speaker (centerfill) (H4/27)
- Left door tweeter (H4/33)
- Right door tweeter (H4/34)
- Left rear surround speaker (H4/54)
- Right rear surround speaker (H4/57)

Establishing a connection is activated in the dialog with the VCS [SBS] with the help of voice commands, e.g. with the following:
- "Dial number"
- "Redial"
- "Listen to 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 (B25) and forwarded via a direct line to the "audio equipment".
The voice control of the voice control system (VCS) is used to establish the telephone call in the hands-free mode.

In vehicles except code (810) Sound system, the signal tone is transmitted directly from the "audio unit" via direct lines to the following speakers:
- Left door speaker group
- Right door speaker group
- Left rear speaker
- Right rear speaker
- Center cockpit speaker (centerfill)
- Left door tweeter
- Right door tweeter

Establish telephone call in hands-free 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
- Cradle
- Direct line
- Left antenna amplifier module (A2/64)
- Direct line
- Rod antenna (A28)

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 of the telephone keys or the keypad on the "audio unit" are processed internally.
For data transfer purposes, the "audio equipment" checks the kilometer reading and the maintenance computer information of the instrument cluster via interior CAN.
In vehicles with code (525) MB Audio 50 APS radio, 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, the navigation data is also transmitted by the navigation module integrated in 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".
The voice output in vehicles with code (810) Sound system, is conducted by the "audio unit" to the amplifier for sound system via MOST. From there, the voice output is transmitted via direct lines to the following speakers:
- Left door speaker group
- Right door speaker group
- Left rear speaker
- Right rear speaker
- Center cockpit speaker (centerfill)
- Left door tweeter
- Right door tweeter
- Left rear surround speaker
- Right rear surround speaker

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 cradle.
In vehicles except code (810) Sound system, the signal tone is transmitted directly from the "audio unit" via direct lines to the following speakers:
- Left door speaker group
- Right door speaker group
- Left rear speaker
- Right rear speaker
- Center cockpit speaker (centerfill)
- Left door tweeter
- Right door tweeter

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

Function sequence, terminate call 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.

Terminate call function sequence over telephone keys or keypad on "audio unit"
The telephone call is terminated by pressing the "END" button on the "audio unit" or by activating the "END" function in the "ComTEL/telephone" menu item. The control signals of the telephone keys or the keypad on the "audio unit" are processed internally.

Function sequence, terminate call over 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 unit" via the following components:
- Steering LIN
- Steering column tube module
- Interior CAN

Terminate call function sequence over 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 hands-free 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".





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