5.22.4. Identification via Chip Card 
When the chip card is inserted, the telephone display will show "RUFNUMMER
EINGEBEN:" ("PLEASE ENTER NUMBER") to prompt the user to enter his/her
home station number. The delimiter (end character) between the station
number and the actual PIN is the "#" character.
In networks with open numbering schemes, users must enter the node
number assigned to their "home" node in front of their home station number.
If entering a PIN identification procedure within their own node, users
can omit the node number.
As a positive acknowledgement, the display will show "Ausweis STNOhome
stno" ("ID card STNOhome stno"). For wrong PIN or wrong home station
number entries, "nicht berechtigt" ("not authorized") will be displayed
as a negative acknowledgement. For other wrong entries, "nicht moeglich"
("not possible") will be displayed as a negative acknowledgement. For
Digites without display units, the appropriate positive or negative acknowledgement
tone or announcement will be heard instead.
Users receive the following display outputs when identifying themselves:
1. Input: Insert chip card
2. Input: 1st digit
of STNO home stno
3. Input: remaining
digits of STNO home stno + #
IMPORTANT:
stno
is normally the user's home station number, but may also be the
number of the "foreign" station used, depending on the user's COPIN.
Users have the option of correcting their entries at each stage of
the procedure, i.e. the home station number entry can be repeated if
mistakes are made during input.'
From V2.0, you no longer need to use the 'SCAA' application
for activation of the mobile station with chip card or smart card.