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There is no such thing as a CDMA SIM card.CDMA is a technology which doesnt use SIM cards.And WCDMA is evolved from gsm and uses SIM cards for 3g.
In short, no. WCDMA is designed to enhance GSM networks, even though it's technology is similar to CDMA, it uses different language.
GSM was created for cell phones in the early 80's. GSM allows you to swap out SIM cards to change your cell phone number, which is an extremely convenient feature.
a phone with these two facility can work in GSM with sim card and can work without sim card in cdma mode
AnswerYES !!! GSM Phones, CDMA Phones will work in India
You cannot use a WCDMA phone on a CDMA network. Wideband Code Division Multiple Access (WCDMA), despite its name, is different from and not part of Code Division Multiple Access (CDMA) networks. WCDMA is one type of 3G technology and is an extension of Global System for Mobile Communications (GSM) networks.
The short answer is no. Boost's newer iDEN phones do use a SIM card that can be used in GSM devices for international roaming but they will not work in GSM devices in the US. Most iDEN phones are not compatible with GSM networks, and GSM phones are not compatible with iDEN networks.
i need materials too thta how simulate inter system handover between wcdma to gsm.......
The phones cellular radio would have to be compatible with the network you wanted to use it with, plus unlocked so that you can connect it to what ever network it's compatible with. T-Mobile uses GSM 850/1900 and UMTS/WCDMA 1700/2100 A quick google search resulted in this: Other cools specs the NEC 931N Slider features is the 1Seg TV tuner and GPS function. There is also Bluetooth Connectivity, Infrared Connectivity, WiFi connectivity, supports microSDHC cards and WCDMA and GSM networks. It might work, but you'd have to check the frequency range the radio operates in. GSM is just a transmission standard and can operate on any radio frequency.
Samsung phones that can support GSM 850/1900/ 3G 1700/2100 are the ones that will work in America. Also, make sure that the phone is already unlocked so you can just insert any American GSM SIM cards.
Code Division Multiple Access or CDMA cell phones utilize a technology that permits the use of several frequencies at the same moment to send and receive data and voice transmissions. CDMA is newer radio technology that is designed to compete with the older Global System for Mobile Communications (GSM) network. As a result, CDMA phones cannot use GSM cell towers. Another difference is that GSM phones use SIM cards while CDMA phones do not.
Nearly every manufactturere produces at last one GSM cell phones. You can find GSM cell phones like the LG GT365 ,or the Tmobile sidekick