Removable User Identity Module (R-UIM, usually pronounced as "R-yuim") is a card developed for cdmaOne/CDMA2000 ("CDMA") handsets that extends the GSMSIM 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 networks. It is physically compatible with GSM SIMs and can fit into existing GSM phones as it is an extension of the GSM 11.11 standard.[1]
This interface brings one of the main advantages of GSM to CDMA network phones. By having a removable identity card, CDMA users can change phones while keeping their phone numbers by simply swapping the cards. This simplifies many situations such as phone upgrades, phone replacements due to damage, or using the same phone on a different provider's CDMA network.
The R-UIM card has been superseded by CSIM on UICC. This technique allows all three applications (SIM, CSIM, and USIM) to coexist on a single smartcard, allowing the card to be used in virtually any phone worldwide that supports smart cards.
The CSIM application, a port of R-UIM functionality to the UICC, is defined in standard.[2]
removable, user, identity, module, usually, pronounced, yuim, card, developed, cdmaone, cdma2000, cdma, handsets, that, extends, card, cdma, phones, networks, work, cdma, networks, contains, early, version, csim, application, card, also, contains, application,. 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 networks It is physically compatible with GSM SIMs and can fit into existing GSM phones as it is an extension of the GSM 11 11 standard 1 KDDI s au IC CardSierra Wireless AirCard 555R PC Card wireless modem for the China Unicom network with R UIM interface extension at the front This interface brings one of the main advantages of GSM to CDMA network phones By having a removable identity card CDMA users can change phones while keeping their phone numbers by simply swapping the cards This simplifies many situations such as phone upgrades phone replacements due to damage or using the same phone on a different provider s CDMA network The R UIM card has been superseded by CSIM on UICC This technique allows all three applications SIM CSIM and USIM to coexist on a single smartcard allowing the card to be used in virtually any phone worldwide that supports smart cards The CSIM application a port of R UIM functionality to the UICC is defined in standard 2 This form of card is widely used in China under the CDMA service of China Telecom The CDMA service of China Telecom was acquired from China Unicom in 2008 However it is also used elsewhere such as India Indonesia Japan Taiwan Thailand and the US See also EditCDMA subscriber identity module CSIM Subscriber identity module SIM Universal subscriber identity module USIM W SIM MEIDReferences Edit www 3gpp2 org C S0023 www 3gpp2 org C S0065External links EditQualcomm TIA Standardizes Removable User Identity Modules Why do CDMA Subscribers Need the R UIM PDF whitepaper Dual mode R UIM This article related to telecommunications is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Removable User Identity Module amp oldid 1128337866, wikipedia, wiki, book, books, library,
