[Problems] There are provided a device and a method for telephone
countermeasure in using a telephone during driving which can
automatically suppress communication of only a driver in a vehicle.[Means
For Solving Problems] The device for telephone countermeasure includes a
database (3), a driver judgment unit, and a mode switching unit. The
database (3) contains driver face data (3-1) and a telephone number (3-2)
of a mobile telephone (7) used by the driver for each of the drivers. The
driver judgment unit identifies the current driver of the vehicle in the
database (3) by the face authentication. The mode switching unit extracts
the telephone number (3-2) of the mobile telephone (7) used by the
identified driver from the database (3) and switches the mobile telephone
(7) of the driver to a drive mode such as a message recording mode by
using the telephone number.