INNO-A21 User’s Guide
INNOSTREAM Confidential
PAGE : 124 of 130
PIN (Personal Identification Number)
The code is to establish authorization for access to certain functions or information in your SIM
card. The PIN code comes with your subscription. It may be a four to eight digit number and can
be changed as required.
PIN2 (Personal Identification Number 2)
The code is an authorization code to access certain special field in your SIM card. The PIN2 code
does not come with your subscription in some country.
PUK (Personal Unblocking Key Code)
Used to unlock a blocked SIM card. This comes with your subscription
Roaming
Use of your phone when you are outside your subscription network area.
SIM (Subscriber Identity Module)
It contains subscriber details, security information and memory for a personal directory of
numbers.
SMS (Short Message Service)
Messages to be sent and received via the network service operator’s message centre to your
mobile phone. To use this service, it must be supported from your network.
WAP (Wireless Application Protocol)
A standard specifically created for mobile communications devices and gives fast and easy access
to Internet information and services.
16. Safety Information
For the efficient and safe operation of your phone, observe these guidelines.
Everyday Use of your phone
