3G
TEL No.: The dial string to make a GPRS / 3G user internetworking call. It may provide by your
mobile service provider.
APN: An APN is similar to a URL on the WWW, it is what the unit makes a GPRS / UMTS call. The
service provider is able to attach anything to an APN to create a data connection, requirements for
APN’s to be assigned varies between different service providers. Most service providers have an
internet portal which they connect a DHCP Server to, giving you access to the internet i.e. Some
3G operators use the APN ‘internet’ for their portal. The default value of APN is “internet”.
Username: Enter the username provided by your service provider.
Password: Enter the password provided by your service provider.
Authentication Type: Default is None. Manually specify CHAP (Challenge Handshake
Authentication Protocol) or PAP (Password Authentication Protocol) if you know which type
the server is using (when acting as a client), or else the authentication type you want clients
connecting to you to use (when acting as a server). When using PAP, the password is sent
unencrypted, whilst CHAP encrypts the password before sending, and also allows for challenges
at different periods to ensure that an intruder has not replaced the client.
PIN: PIN stands for Personal Identication Number. A PIN code is a numeric value used in certain
systems as a password to gain access, and authenticate. In mobile phones a PIN code locks the
SIM card until you enter the correct code. If you enter the PIN code incorrectly into the phone
3 times in a row, then the SIM card will be blocked and you will require a PUK code from your
network/service provider.
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