TABLE OF CONTENTS CDMA mobile devices are data input and output devices that are used to communicate with a nearby Base Station. CDMA devices may or may not include removable user identity modules (UIMs) that hold service subscription information. The common types of available CDMA devices include mobile telephones, personal digital assistant, and a variety of mobile data devices. CDMA devices may be single mode data, single mode voice (IS-95), or dual mode voice and data.
A removable user identity module (R-UIM) is an optional small "information" card that contains service subscription identity and personal information. This information includes a phone number, billing identification information and a small amount of user specific data (such as feature preferences and short messages). This information can be stored in the card rather than programming this information into the phone itself. This intelligent card, either credit card-sized (ISO format), or the size of a postage-stamp (Plug-In format), can be inserted into any R-UIM ready wireless device.
A UIM is a subscriber identity module (SIM) that contains additional directories that are created to support the CDMA systems. While it may be technically possible to use a R-UIM from a CDMA phone in another type of phone that is capable of SIM cards (e.g. a GSM mobile phone), there are very few IS-95 CDMA phones that have R-UIM capability.
CDMA PCMCIA cards can be added to most laptop computers or embedded radio modules allow devices such as PDAs and Laptops to integrate...
