Voice connection between vehicle and Service Center, function - GF82.95-P-2022LEU

MODEL 216 with CODE (359) TELE AID emergency call system as of model year 2009/YoM 08

MODEL 221 with CODE (359) TELE AID emergency call system as of model year 2009/YoM 08

Function requirements

Terminal 30
Each vehicle-related service is authorized separately
An emergency call system control unit (N123/4) communication module authorized for the corresponding vehicle-related service is configured ex-factory with the telephone number of the corresponding service provider
The customer is registered and authorized at the service center
One mobile phone network is available in sufficient strength and quality
One of the following vehicle-related services is present:

Manual or automatic emergency call (E-Call)
MB-Info call
Breakdown assistance (Roadside Assistance)
Vehicle tracking

General

Regardless of the type of vehicle-related service initiated (e.g. MB-Info call), a voice connection is established to the Service Center. After feedback by the Service Center with a special tone, an SMS is sent to the Service Center with the appropriate data (vehicle identification number (VIN) and vehicle model, etc.). Then the customer can speak to a service receptionist over the existing voice connection.

Function sequence

The hands-free system microphone group (A67b1), integrated into the inside rearview mirror, is used for voice input. The signals of the hands-free system microphone group are sent over direct lines to the voice control system control unit (VCS [SBS]) (N41/3) (with code (813) Voice control system (VCS [SBS]) up to 31.5.09) or to the COMAND controller unit (A40/3) (as of 1.6.09) and forwarded from there to the emergency call system control unit.

The communication module integrated into the emergency call system control unit then transmits the hands-free system microphone group signals to the service center.

The communication module integrated into the emergency call system control unit transmits and receives the mobile phone signals or data in the following way:

Direct line
Frequency switchover control unit (N96), model 221 with code (389) Mobile phone preinstallation with universal interface, USA/Canada
Emergency call antenna (A2/52), model 216
Telephone and GPS roof antenna (A2/49), model 221

The emergency call antenna on model 216 is integrated into the GPS antenna (A2/49a2).

If the telephone and GPS roof antenna malfunctions, model 221, or the emergency call antenna, model 216, (e.g. defective through rollover) the emergency call system control unit sends and receives the mobile radio signals or mobile radio data as follows to transmit the mobile radio signals or mobile radio data:

Direct line
Emergency call system antenna splitter (A2/25)
Direct line
Emergency call system left backup antenna (A2/54)
Emergency call system right backup antenna (A2/55)

Voice output is performed exclusively over the cockpit center speaker (Centerfill) (H4/27). This is actuated over direct lines by the emergency call system control unit and muted by means of a mute signal for all other application (e.g. audio mode). At the same time, the emergency call system control unit sends a mute signal over a direct line to the audio tuner control unit (N93/1) or the digital sound processor (A2/69) (model 221 as of 1.9.10 with code (811) Advanced Sound System), to mute the following speakers:

Model 216:

Left door rear speaker (H4/3)
Right door rear speaker (H4/4)
Bass box speaker (H4/17)
Left rear surround speaker (H4/54)
Right rear surround speaker (H4/57)
Left door sound tweeter (H4/68)
Right door sound tweeter (H4/69)
Left door sound woofer and midrange speaker group (H4/72)
Right door sound woofer and midrange speaker group (H4/73)

Model 221 except model 221 (as of 1.9.10) with code (811) Advanced Sound System:

Left rear door speaker group (H4/3)
Right rear door speaker group (H4/4)
Bass box speaker
Left rear surround speaker
Right rear surround speaker
Left front door sound tweeter (H4/68)
Right front door sound tweeter (H4/69)
Left front door sound woofer and midrange speaker group (H4/72)
Right front door sound woofer and midrange speaker group (H4/73)

Model 221 (as of 1.9.10) with code (811) Advanced Sound System:

Speaker Left front door (H4/5)
Right front door speaker (H4/6)
Bass module speaker
Left front door tweeter (H4/33)
Right front door tweeter (H4/34)
Left rear door tweeter (H4/35)
Right rear door tweeter (H4/36)
Left rear surround speaker
Right rear surround speaker
Left front door woofer (H4/64)
Right front door woofer (H4/65)
Left rear door woofer (H4/66)
Right rear door woofer (H4/67)

The woofers and bass box speaker on model 221 (as of 1.9.10) with code (811) Advanced Sound System are actuated by the sound amplifier (A2/13), which is controlled by the digital sound processor.

Normally, the voice connection is deactivated by the service center or by the customer.

The establishment of a voice connection to the service center is interrupted by the communication module integrated into the emergency call system control unit after several unsuccessful dialing attempts.

Electrical function diagram for voice connection between vehicle and service center, function	Model 216	PE82.95-P-2069-97CAA
	Model 221	PE82.95-P-2069-97SAA
Digital sound processor, component description	A2/69 Model 221 as of YoM 10 with code (811) Advanced Sound System	GF82.62-P-5011LE
Component description for COMAND controller unit	A40/3	GF82.85-P-3136LEU
Component description for voice control system (VCS [SBS]) control unit	N41/3 With code (813) Voice control system (VCS) up to 31.5.09	GF82.70-P-4300LE
Component description for central gateway control unit	N93	GF54.21-P-4170LE
Audio tuner control unit, component description	N93/1	GF82.62-P-3132LES
Component description for emergency call system control unit	N123/4	GF82.95-P-3212LEU