GF82.70-P-0003CD Telephone (D Network) Function

GF82.70-P-0003CD Telephone (D Network) Function
- with CODE (854) MB portable CTEL

Portable cellular telephone, function
Installation differs according to the model and equipment (multifunction steering wheel, voice control system), a prerequisite being that the system is ready for operation (switched on) after entering the PIN and logging in. If the CTEL is not required, then it switches into standby mode. The telephone is switched on and off by the vehicle head unit (COMAND, radio).

The portable cellular telephone is connected to the vehicle optical data bus (D2B) just as is the head unit.

The physical connection takes place via an adapter, the CTEL [TEL] interface (A34/4).

Incoming and outgoing calls are transmitted via the telephone antenna.Differences in the CTEL systems are a consequence of vehicle-specific conditions (convertible, sedan, T-model etc.). This means that different car antennas, speakers, etc. have to be used, and depending on the model and equipment, the antenna splitter (A28/1) may be required.

It is possible for all models to conduct calls using the vehicle's hands-free system, which greatly enhances driving safety. In this case, the call is made via the hands-free system microphone (B25) and the hands-free system speaker , and the portable CTEL remains in the cradle.

The displays (handset, portable cellular telephone, instrument cluster, COMAND, radio) indicate a number of messages informing the user of the operating state (e.g. menu selection) of the telephone.

The volume of the portable cellular telephone loudspeaker and of the hands-free system can be adjusted individually by the user at the portable cellular telephone or with the multifunction steering wheel (if installed).

To ensure user voice input which is as clear as possible via the hands-free system microphone, the volume of the audio source (radio, COMAND) switched on is reduced automatically during a call. With the new generation of telephones (Nokia) the user can switch networks (D-network or E-network). This is possible by installing the E-net compensator (A28/3).

Additional information is contained in the applicable operating instructions.