Porsche CDR-31 2011 Driver Manual page 38

Functions available during a call
Adjusting the volume
The left control dial can be used to adjust the vol-
ume of the other person's voice during a conver-
sation.
Sending DTMF tones
Some answering machines and other devices can
be controlled using DTMF tones e. g. for remote
request functions.
f Select "Touchtone dialling" whilst a connection is
active.
f Select the desired number.
Each character is sent immediately.
Accepting another call
It is possible to accept another incoming call dur-
ing a conversation. This will cause the first call to
be terminated.
36
Telephone mode (optional)
Continuing a call on the mobile telephone
("Private Mode")
1. Select "Private" during a call.
This will either transfer the call to the mobile
telephone or reconnect a call to the
CDR-31.