Ericsson W2x Series 사용자 설명서

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221 02-FGB 101 327 Uen C - December 2006 

The basic security feature of the W2x 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. To simplify usage, the W2x 
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 W2x terminals provide security features that prevent 
unauthorized use of the SIM card and the unit, which can be customized if 
required. 

This feature controls the W2x terminals network access, based on whether 
the SIM matches one or more of the following criteria: 

•  Mobile Country Code (MCC) and Mobile Network Code (MNC) 

•  Additional Mobile Country Code (MCC+) and Additional 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, particularly GSM 
and UMTS 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. 

The unit can be locked to one or two specific mobile network providers. 

This feature locks the SIM card to a unique unit by changing the PIN code 
to a new randomly value. As a result, the SIM card cannot be used in 
another terminal unless the PUK code is known. 

A mechanical anti-theft kit is available as an accessory. The kit consists of 
a wall bracket with an anti-theft detail and a special anti-theft key for 
removing a unit that is locked to the wall bracket.