41
PIN
The four digit PIN ("Personal Identifica-
tion Number") protects the SIM card from
misuse. The PIN needs to be entered
when the device is switched on. Only
then can the SIM card be fully utilised. If
the PIN is entered incorrectly three times
the SIM card will be locked. To use the
card again you will need the PUK
unblocking key.
PUK
The eight digit PUK ("Personal Unblock-
ing Key") is used to unblock the SIM card
if the Personal Identification Number
(PIN) has been entered incorrectly sev-
eral times (usually three times). The PUK
is not saved in the mobile phone. The
PUK is specific to the SIM card and can
be requested from the manufacturer.
SIM card
The SIM card ("Subscriber Identity Mod-
ule") is a chip card that is inserted into a
mobile phone or the Vitocom 100 to iden-
tify the user on the network. This enables
mobile phone providers to make mobile
phone connections and data connec-
tions available to subscribers. The SIM
card is activated by entering the Per-
sonal Identification Number (PIN).
Type of SIM card Meaning
Prepaid cards The term prepaid card describes the use
of services by means of prepaid credit.
Postpaid cards Postpaid payment systems involve phone
contracts with retrospective billing (usu-
ally on a monthly basis).
SMS
SMS ("Short Message Service") is a tel-
ecommunication service which transmits
written messages that are usually refer-
red to as "text messages" or "SMS".
This service allows you to send text mes-
sages of up to 160 characters from one
mobile phone to another (or to the
Vitocom 100).
Appendix
Terminology
(cont.)
5782 277 GB
To Next Page
Loading...
