Operation CHARM: Car repair manuals for everyone.

Telephone Module



Telephone Module (optional)







The internal GSM telephone module, which is available on request, offers optimized sound quality and is extremely easy to use. As a quad-band telephone module (for GSM networks 800, 900, 1,800 and 1,900), it now covers all GSM frequency ranges currently used worldwide.

The hands-free quality has been improved significantly in the new generation. Two circular microphones in the steering column cover are switched together using beamforming technology. As a result of the continuous measurement and weighting of the various sound signals (useful signal = voice, interference noises = wind noise, engine noise, for example), the signals that are received are directed more towards the driver and reception quality is optimized. Weighting is performed according to direction, i.e. the shorter the time delay, the more likely the driver's position is the source of the signal. This innovative technology is particularly effective at filtering out and eliminating interfering signals.

Essentially, two alternative operating modes are possible:

1. With SIM card inserted







A SIM card can be inserted into the SIM card reader integrated in PCM in the usual way and calls can be made and received using the hands-free facility or the cordless handset, which is available on request.

2. Using Bluetooth(R) (SAP)







The excellent hands-free quality of the telephone module also comes in handy in this mode with the added convenience of not having to insert a SIM card: the mobile phone you are carrying connects automatically to the telephone module via a Bluetooth(R) connection using the SIM Access Profile (SAP). Virtually all telephone functions are performed via Bluetooth without a cable connection regardless of whether the mobile phone is in the console or somewhere else inside the vehicle (e.g. in a coat pocket).

Having connected once, the PCM system detects your mobile phone whenever you get into the vehicle and connects again automatically. Up to five different mobile phones can be stored in this way.

The mobile phone antenna is switched off to save the battery and only the vehicle's external antenna is used for making and receiving calls. It is possible not only to access the data on the SIM card, but also the telephone numbers in the internal memory, depending on the type of mobile phone.

Calls can be made and received completely via PCM, the multi-function steering wheel or voice control - while your mobile phone stays comfortably in your coat pocket.

NOTE: A list of mobile-phone brands compatible with Bluetooth(R) can be found at www.porsche.com.