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Glossary
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Glossary
Alternate line service (ALS)
Alternate line service allows you to have two different phone
numbers, which page the same SIM card. Each of these phone
numbers can have different settings: call barrings, diverts, etc.
This is a network service which has to be subscribed to separate-
ly with your service provider. These two phone numbers are han-
dled as separate numbers in the network. They are invoiced
separately and can be used, for example, for differentiating be-
tween personal and business calls.
Car data
Car data includes data that contains the essential information
about your car. This information is required in emergency situ-
ations.
Data centre number
This number is needed when your phone has been connected to
a laptop PC via an RS232-cable and you want to make data
calls.
DTMF (Dual Tone Multi-Frequency) tones
DTMF tones are the tones you hear when you press the number
keys on the phone keypad. DTMF tones allow you to communi-
cate with voice mailboxes, computerised telephony systems,
etc.
PIN (Personal Identity Number) code
The PIN code protects your phone from unauthorised use. The
PIN code is supplied with the SIM card. If the PIN code request
is set to on, the code is required each time the phone is switched
on. The PIN code must be 4 to 8 digits long.
PIN2 code
The PIN2 code is supplied with some SIM cards. The PIN2 code
is required to access certain functions supported by the SIM
card. The length of the PIN2 code is 4 to 8 digits.
PUK (PIN Unblocking Key) code
The PUK is an 8-digit code supplied with the SIM card. The code
is required should you desire to change a disabled PIN code. If
you enter an incorrect PUK code ten times in succession, the
SIM card is rejected and you cannot make or receive any calls,
except emergency calls. If the SIM is rejected, you will need a
new SIM card.
You cannot change the PUK code. If you lose the code, contact
your network operator.
PUK2 code
The PUK2 code is supplied with some SIM cards. The code is re-
quired when you wish to change a disabled PIN2 code. If you en-