System information

22 221 02-FGB 101 544 Uen A - September 2008

4.6.1 PPP Client

The W3x terminals include a PPP client for WAN access. For

authentication both the PAP and CHAP protocols are supported.

4.6.2 PPP Authentication Type

This feature enables the possibility to change the authentication protocol

(CHAP or PAP) when authentication against the cellular network is done

using a RADIUS server.

4.7 Security

The basic security feature of the W3x terminals are the same as any GSM

phone, using a PIN code that comes with the subscription SIM card. The

PIN code is simply entered via the WUI or via phone handset (only W35).

To simplify usage, the W3x terminals have an auto PIN feature that

requires the PIN code only to be entered the first time the unit is used or

upon changing the SIM card.

Additionally the W3x terminals provide security features that prevent

unauthorized use of the SIM card and the unit, which can be customized if

required.

4.7.1 PIN Lock

This feature locks the SIM card to a unique unit by changing the PIN code

to a new random value. As a result, the SIM card cannot be used in another

terminal unless the PUK code is known.

4.7.2 Operator Lock

This feature allows for the use of SIM cards in the terminal that meet

specific criteria. This would normally be configured to allow only a specific

operator or group of operators SIM cards.

The W3x terminals can be locked to only accept SIM cards based on one

or more of the following:

• Mobile Country Code (MCC)

• Mobile Network Code (MNC)

MCCs are defined in ITU E.212 (“Land Mobile Numbering Plan”) for use in

identifying mobile stations in wireless telephone networks. A MCC is often

used in combination with a Mobile Network Code (MNC) in order to

uniquely identify a network operator.

Both the MCC and MNC are part of the International Mobile Subscriber

Identity (IMSI) number, which uniquely identifies a particular subscriber,

and is stored on the SIM card.

From the WUI it is possible to enter a secret “Unlock Operator Lock” code

(which is a random code generated at production).