DTMF suffix dialing
DTMF suffix dialing can be used for gaining access to network services or for controlling devices, e.g., to make a remote inquiry of an answering machine. The DTMF code is needed for this purpose.
1. "Telephone".
2. Select the contact from a list or "Dial number".
3. 
"Keypad dialing".
4. Enter the DTMF code via iDrive.
See also:
Software Update
The vehicle supports various external devices
depending on the current software version. With
a software update, the vehicle can support new
cell phones or new external device, for example.
...
Electronic displays
With the Professional navigation system
1 Selection list, such as for the radio
Navigation display
Speed limit detection
Computer
2 Transmission displays
3 Service requirements
Messages ...
Capacities
...