GF82.70-P-2018FQ Accept Call and Reject Call With the Mobile Phone System, Function

GF82.70-P-2018FQ Accept Call and Reject Call With the Mobile Phone System, Function
MODEL 218

Function requirements, general
^ Circuit 30g ON
^ A mobile telephone network available in adequate strength and quality
^ Compatible mobile phone inserted into mobile phone cradle (A34/15) (accessory) that is connected to Bluetooth module (A34/7) (with code (386) Comfort telephony) or Bluetooth- compatible mobile phone authorized in vehicle (without code (386) Comfort telephony)
^ Correct Personal Identification Number (PIN) entry, if configured on mobile phone, (not with code Division Multiple Access (CDMA) network in USA)
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

Accept call and reject call with the mobile phone system, general
The system is described on the example of a system with code (386) Comfort telephony. Deviations for basic telephony (without code (386) Comfort telephony) are identified by the symbol.
The user can set up a telephone connection for initiating or terminating 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
- Control buttons on the audio equipment
- Audio/COMAND control panel (A40/9)
- Right multifunction steering wheel button group (S111)
- Voice control system (VCS [SBS]) (with code (511) Audio 50 APS with DVD changer or code (527) COMAND APS with single DVD drive (with navigation) or code (512) COMAND APS with DVD changer)
The mobile phone receives incoming calls via the following route:
- Multifunction antenna (A28/11)
- Direct line
- Mobile phone and stationary heater radio remote control antenna splitter (A2/53) (with code (228) Stationary heater)
- Direct line
- Cellular telephone system antenna amplifier/compensator (A28/3) (with code (228) Stationary heater and code (386) Comfort telephony)
- Direct line
- Cradle
- Mobile phone
On vehicles without code (386) Comfort telephony, the mobile phone receives the call signal via the mobile phone's own antenna.
The call signal is then forwarded to the audio equipment via the following route:
- Mobile phone antenna
- Bluetooth antenna
- Direct line
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).
If the mobile phone supports "In-band ringing", the mobile phone ringing is emitted over the vehicle speakers, otherwise the audio unit's default ringing sound is used.
The audio equipment 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 audio equipment 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 audio equipment via the following route:
- Cradle
- Bluetooth module
- Bluetooth antenna (A2/91)
In handsfree mode, audio output takes place via the speaker system of the vehicle. A currently active audio source is muted (MUTE).
On vehicles with code (810) Sound system, the audio equipment sends the audio signals through the Media Oriented System Transport (MOST) to the sound system amplifier control unit (N40/3), which then amplifies them and outputs them over the following speakers:
- Center instrument panel speaker (H4/27)
- Left front door sound system bass speaker (H4/64)
- Right front door sound system bass speaker (H4/65)
- Left front door sound system tweeter (H4/68)
- Right front door sound system tweeter (H4/69)
- Left front door sound system midrange speaker (H4/72)
- Right front door sound system midrange speaker (H4/73)
On vehicles without code (810) Sound system, the corresponding audio signals are output over the following speakers:
- Left front door speaker (H4/1)
- Left front door tweeter (H4/1h1)
- Right front door speaker (H4/2)
- Right front door tweeter (H4/2h1)
The accept call and reject call function is made up of the following subfunctions:
^ Function sequence for accepting call
^ 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
- Control buttons on the audio equipment
- 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.
A telephone call can be accepted on the audio equipment by pressing the "Accept" control button on the audio equipment.
The control signal is internally processed by the audio equipment and forwarded to the mobile phone via the following route:
- Bluetooth antenna
- Bluetooth module
- Cradle
On vehicles without code (386) Comfort telephony, communication takes place between the audio device and the mobile phone through the 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 audio equipment. The audio equipment then forwards it to the mobile phone via the following route:
- Bluetooth antenna
- Bluetooth module
- Cradle
On vehicles without code (386) Comfort telephony, communication takes place between the audio device and the mobile phone through the 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 signal from the accept/terminate phone call button is forwarded to the "audio equipment" via the following route:
- Steering wheel electronics (N135)
- Steering LIN (LIN E1)
- Steering column tube module control unit (N80)
- Chassis CAN (CAN E)
- Instrument cluster
- Interior CAN
The audio equipment then forwards it to the mobile phone via the following route:
- Bluetooth antenna
- Bluetooth module
- Cradle
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 audio equipment 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 registered by the handsfree system microphone (A67b1) and forwarded to the audio equipment via a direct line.
The audio equipment then forwards the voice commands to the mobile phone via the following route:
- Bluetooth antenna
- Bluetooth module
- Cradle
The individual voice commands are listed in the "Linguatronic operator's manual".
On vehicles without code (386) Comfort telephony, communication takes place between the audio device and the mobile phone through the Bluetooth antenna:

Function sequence for rejecting call
An incoming phone call can be rejected using the following controls:
- Control buttons on the mobile phone
- Control buttons on the audio equipment
- 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.
The audio equipment then forwards the control signal to the mobile phone via the following route:
- Bluetooth antenna
- Bluetooth module
- Cradle
On vehicles without code (386) Comfort telephony, communication takes place between the audio device and the mobile phone through the 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 to the audio equipment. The audio equipment then forwards it to the mobile phone via the following route:
- Bluetooth antenna
- Bluetooth module
- Cradle
On vehicles without code (386) Comfort telephony, communication takes place between the audio device and the mobile phone through the Bluetooth antenna:
Pressing the left button on the accept/terminate phone call button rejects an incoming phone call. The control signal from the accept/ terminate phone call button is forwarded to the "audio equipment" via the following route:
- Steering wheel electronics
- Chassis CAN
- Instrument cluster
- Interior CAN
The audio equipment then forwards it to the mobile phone via the following route:
- Bluetooth antenna
- Bluetooth module
- Cradle
On vehicles without code (386) Comfort telephony, communication takes place between the audio device and the mobile phone through the Bluetooth antenna: