Opel CD 70 Manual page 151

The following functions are available:
Hang-up
This function ends the telephone
connection.
Micro off
This function turns off the telephone
microphone.
DTMF (tone)
Various phone services (e.g. Voice-
Mail or telephone banking) require
the input of control tones.
When a telephone connection is
active:
Select the menu item DTMF.
The DTMF menu is displayed.
You can now enter numbers using the
thumbwheel.
In the display footer, select the figures
required.
The signal tones are now sent.
Freespeech
With a mobile telephone connected
via Bluetooth™, with this function you
can turn off the hands-free function
3 142.
This menu point is invisible when the
mobile telephone is connected to the
Infotainment system via an adapter.
Introduction
Mobile phones and CB
radio equipment
Installation instructions and
operating guidelines
The vehicle specific installation
instructions and the operating
guidelines of the mobile phone and
handsfree manufacturer must be
observed when installing and
operating a mobile telephone. Failure
to do so could invalidate the vehicle
type approval (EU directive 95/54/
EC).
Recommendations for fault-free
operation:
■ Professionally installed exterior
antenna to obtain the maximum
range possible,
■ Maximum transmission power 10
watts,
■ Installation of the phone in
a suitable spot, consider relevant
Note in the Owner's manual,
chapter Airbag system.
149