GF82.95-P-0001SXX TELE AID Operation

GF82.95-P-0001SXX TELE AID Operation
- Model 221
- with CODE (389) Mobile phone preinstallation with universal interface, USA/Canada

Component Identification:

The emergency call system control unit is used to implement current and future vehicle-related services. The vehicle-related services currently supported are:
^ Telematic Alarm Identification on Demand (emergency call system) (TELE AID) (incl. police emergency call number "911") manual/automatic
^ MB information call
^ Telediagnosis/roadside assistance
^ Tracking (dynamic assignment)
^ Remote Door Unlock (vehicle remote door locking)
^ Remote Door Lock (vehicle remote door unlocking)
^ Authorization

The emergency call system control unit is not used for regular telephone calls.

All vehicle-related services are integrated in the emergency call system control unit and they run fully automatically.

The information is shown in the COMAND display and in the multifunction display (A1p13) of the instrument cluster. As position finding is required for the vehicle-related services, the navigation unit integrated in the emergency call system control unit is used. The navigation unit is a global positioning system (GPS) receiver in the emergency call system control unit, which allows precise position finding. The position and direction of travel of the vehicle are determined automatically and provided in the form of a history. The navigation unit receives its GPS data over the antenna splitter from the telephone and GPS roof antenna (on model 221) or from the telephone and GPS antenna (A2/49) (on model 216). The communication unit is a cellular phone that was adjusted to the American cellular mobile telephone network and is only used to process the telematics functions. The communication unit transmits and receives its data over the telephone and GPS roof antenna (on model 221) or over the telephone and GPS antenna (on model 216). A prerequisite for using the vehicle-related services, however, is a communication module of the emergency call system control unit that is authorized for the respective vehicle-related service.

Function requirements
Each vehicle-related service must be authorized separately. In the event of a defect or missing authorization, a fault message appears in the multifunction display of the instrument cluster and in the COMAND display.

Self-test
After activation of circuit 15R, the emergency call system control unit performs a self-test (for approx. 3.5 s). If the self-test is successful, the TELE AID is operational. If a fault is detected, the multifunction display of the instrument cluster shows a corresponding fault message.

Basic functions
The TELE AID offers of the following basic functions:
^ Performs cyclic self-diagnosis
^ Keeps vehicle data available and transmits them securely in case of requirement
^ Transmits data messages (via SMS, not with Advanced Mobile Phone System (AMPS))
^ Placing telephone calls in hands-free mode

Emergency call system
In the event that the driver has an emergency in a remote area, a Customer Assistance Center (CAC) technician can use a voice connection to obtain an overview of the situation in the vehicle interior with the aid of the emergency call system control unit and initiate the appropriate emergency measures (automatic emergency call). It is also always possible to transmit a manual emergency call by actuating the SOS pushbutton switch in the overhead control panel control unit. The TELE AID is activated in 2 different ways:
^ Automatically, in the event of a crash (through the crash data of the supplemental restraint system (SRS))
^ Manually by actuating the SOS pushbutton switch in the overhead control panel control unit

In both cases, an emergency message is transmitted immediately to the closest emergency center. Contents of the emergency call message are:
^ vehicle position, direction of travel and history
^ vehicle data and crash detection (severity of the accident)
^ customer data of the emergency service provider

Authorization
A prerequisite for using the vehicle-related services is a communication module of the emergency call system control unit that is authorized for the respective vehicle-related service. In other words, the communication module of the emergency call system control unit must have been configured ex factory with the telephone number of the corresponding service provider.
Subsequently, the user has to authorize himself in the CAC with this call number. The authorization can already be done, in part, at the factory. The vehicle-related services are activated by pressing the corresponding button in the MB-Info and telediagnosis button group or for a manual emergency call by pressing the SOS pushbutton switch in the overhead control panel control unit.

After activation, the emergency call system control unit sends an SMS to the CAC. Once the SMS is sent (not with AMPS), a voice connection is immediately established to the CAC.

Misuse of emergency call alarm is subject to punishment!

Terminating the emergency call
Usually, the emergency service center deactivates the emergency call.

After several unsuccessful attempts to establish a connection, the emergency call system control unit stops trying to establish an emergency call.