Telephone (GSM), function - GF82.70-P-0003CA
MODEL 129, 202, 208, 210, 215, 220 with CODE (316) MB GSM cellular telephone (D2B)
fixed installation
Fixed installation, function (1st generation D2B-capable telephones)
A call can be set up in different ways depending on the model and equipment specification ( multifunction steering wheel, voice control system ), provided that the PIN has been entered, the system logged in and ready (switched on). If the telephone is not needed, it goes into standby mode. The telephone's On/Off characteristics are controlled by the vehicle's Head Unit (COMAND or radio).
The telephone's transmitter/receiver unit is integrated into the vehicle's optical data bus (D2B) as is the Head Unit.
The physical connection is made by way of an adapter ( D2B interface ).
The 1st generation of D2B capable telephone fixed systems (as of 1.6.98) the D2B interface (A59) is physically separated from the CTEL transmitter / receiver (A35) in the vehicle.
Calls are transmitted via the vehicle's telephone antenna .
The differences in the antennas for the telephone systems result from vehicle-specific factors (convertible, sedan, T-model etc.). This in turn requires the use of different vehicle antennas, speakers etc., depending upon the type of (vehicle) antenna and its equipment specification an antenna splitter (A28/1) can also be used.
On all models it is possible to conduct a call via the vehicle's handsfree system which greatly enhances driving safety. Here the call is conducted via the handsfree system microphone (B25) and the handsfree system speaker , the handset remains in the receptacle. In this case the handset's display shows a sequence of displays, which inform the user of the operating condition (e.g. menu selection) of the telephone.
In vehicles equipped with a multifunction display additional information is shown on the instrument cluster's multifunction display, which informs the user about the telephone system's operating state.
The volume of the speaker on the handset and therefore the volume of the handsfree system can be individually set by the user to suit on the handset, or if fitted by using the multifunction steering wheel.
In order to ensure that the user's voice input via the handsfree system's microphone is not distorted in any way, the volume of an audio source that is active during the call (radio, COMAND) is automatically lowered for the duration of the call.
Further information is available in each of the respective owner's manuals.
| Telephone (D network) Location of components |
Model 129 as of 1.6.98 | GF82.70-P-0003-01D |
| Model 168 | GF82.70-P-0003-01GC | |
| Model 170 | GF82.70-P-0003-01H | |
| Model 202 as of 1.6.98 | GF82.70-P-0003-01E | |
| Model 208 | GF82.70-P-0003-01K | |
| Model 210 as of 1.6.98 | GF82.70-P-0003-01F | |
| Model 215 | GF82.70-P-0003-01N | |
| Model 220 | GF82.70-P-0003-01A | |
| Telephone (D network), functional diagram | with codes 316/317 Models 129 as of 1.6.98, 168, 170, 202 as of 1.6.98, model 208, model 210 as of 1.6.98, model 215, model 220 |
GF82.70-P-0003-02D |
| On / Off characteristics, function | GF82.70-P-2005BA | |
| Interface telephone, position/task/design/function | GF82.70-P-3107F | |
| Position / task of handsfree microphone | GF82.70-P-4102B | |
| Position / task of handsfree speaker | GF82.70-P-4103B | |
| Telephone antenna, position/task | GF82.62-P-4105C | |
| Telephone handset (D network), position/task | GF82.70-P-4106C | |
| CTEL transmitter / receiver (D network), position/task | GF82.70-P-4107C | |
| Antenna splitter (D network), position/task | GF82.70-P-4109C | |
| Portable cellular telephone (D network), position/task | GF82.70-P-4110C |