Telephone (GSM), function - GF82.70-P-0003R: Notes
MODEL 230 with CODE (853) MB standard cellular telephone
Permanently installed telephone, function
A call can be completed in a number of ways (multifunction steering wheel, voice control system ). This assumes that the system is ready for operation after entering the PIN and logging in (switched on). If the telephone is not required, it goes to the stand-by mode. The telephone is switched on and off by the vehicle head unit (COMAND, radio).
The telephone transmitter/receiver is connected to the vehicle optical data bus (D2B) just as is the head unit.
The physical connection is accomplished over an adapter (D2B interface ).
The interface is integrated in the D2B telephone transmitter/receiver (A35/13).
Calls are transmitted over the telephone antenna (A2/22) .
It is possible to use the vehicle hands-free system for making calls, which increases driving safety.
In this case, the call is made via the hands-free system microphone (B25) and the hands-free system speaker (speaker output via entire loudspeaker system), and the handset remains in the cradle.
Here, the displays (telephone handset, instrument cluster, COMAND, radio) provide a series of information for the user regarding the telephone operating state (e.g. menu selection).
The volume of the loudspeaker on the handset and therefore also of the hands-free system can be adjusted individually by the user at the handset or with the multifunction steering wheel.
The volume of any audio source switched on (radio, COMAND) is automatically reduced during a telephone conversation to ensure the maximum fidelity for the user over the hands-free system microphone.
Additional information is contained in the applicable operating instructions.
| Telephone (D-network), arrangement of components | GF82.70-P-0003-01R | ||
| Telephone (D-network), block diagram | with code 853 | GF82.70-P-0003-06RA | |
| with code 854 | GF82.70-P-0003-06R | ||
| Telephone (D-network), function schematic | with code 853, 854 | GF82.70-P-0003-02R | |
| Switching on/off, function | with code 853 | GF82.70-P-2005RA | |
| Switching on/off, function | with code 854 | GF82.70-P-2005R | |
| Hands-free microphone, location/purpose | GF82.70-P-4102R | ||
| Hands-free system loudspeaker, location/ purpose | GF82.70-P-4103R | ||
| Telephone antenna, location/purpose | GF82.62-P-4105R | ||
| Telephone handset (D-network), location/purpose | GF82.70-P-4106R | ||
| Telephone transmitter/receiver (D-network), location/purpose | GF82.70-P-4107R | ||
| Antenna splitter (D-network), location/purpose | GF82.70-P-4109R | ||
| Portable cellular telephone (D-network), location/purpose | GF82.70-P-4110R |