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Cellular Digital Packet Data (CDPD) is an obsolete wide-area mobile data service which used unused bandwidth normally used by Advanced Mobile Phone System (AMPS) mobile phones between 800 and 900 MHz to transfer data. Speeds up to 19.2 kbit/s were possible, though real world speeds seldom reached higher than 9.6 kbit/s.
Removable User Identity Module (R-UIM, usually pronounced as "R-yuim") is a card developed for cdmaOne/CDMA2000 ("CDMA") handsets that extends the GSM SIM card to CDMA phones and networks. To work in CDMA networks, the R-UIM contains an early version of the CSIM application. The card also contains SIM (GSM) application, so it can work on both ...
A selection of mobile phones that can be cloned. Code-Division Multiple Access (CDMA) mobile telephone cloning involves gaining access to the device's embedded file system /nvm/num directory via specialized software or placing a modified EEPROM into the target mobile telephone, allowing the Electronic Serial Number (ESN) and/or Mobile Equipment Identifier (MEID) of the mobile phone to be changed.
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During the smart card lifecycle, the smart card is changing state (examples of such states include issued, blocked and revoked), the process of taking a smart card from one state to another, is the main responsibility of a smart card management system. Different smart card management systems call these processes by different names.
The network can link the data connection into a company network, but for most users the connection is to the Internet. This allows web browsing on the phone, but a PC can also tap into this service if it connects to the phone. The PC needs to send a special telephone number to the phone to get access to the packet data connection.
The standard ISO/IEC 7816 also regulates data exchange protocols and some aspects of work with other smart card data. [1] [2] Such cards are used for holder authorization for reception of certain services, such as bank account access for payments realization, use of prepaid mobile services, etc. The most widespread contact smart cards are SIM ...