4. Telephone
In order to make phone calls, the following re-
quirements must be met:
• An activated SIM card must be inserted.
• The phone interface must be switched on.
For a description of the phone interface keys and
especially the
button, see chapter 13 "Phone
interface" on page 13-1.
Note: The phone interface keys are not function-
al when the device cover is open.
The Telephone application is started by pressing
the Tel. application button on the keyboard.
Some of the telephony operations explained here
can be made in many ways, for example, via the
phone interface.
Note the following Telephone features:
• Opening or closing the cover does not affect
active phone calls.
• If you have made a voice call via the phone
interface and you open the cover, the Tele-
phone application starts automatically. You
can continue the call after activating the
handsfree mode (see "Audio control").
• When you make a call via the communicator
interface (with the Telephone application), the
handsfree mode is activated automatically.