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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.
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 acronym WCDMA stands for Wideband Code Division Multiple Access. It one of two mobile networks, the other being CDMA, and is specified for the 3G speed.
No.
In short, no. WCDMA is designed to enhance GSM networks, even though it's technology is similar to CDMA, it uses different language.
a phone with these two facility can work in GSM with sim card and can work without sim card in cdma mode
voice quality is better cdma techology
There is no such thing as a CDMA SIM card, since CDMA phones do not use SIM cards.
i've mts mobile. i want to change into cdma
CDMA and GSM are Radio technologies and mobile Phone is just an Antenna to receive these Radio Signals. Since both the technologies work on different frequency range and has different modulation shemes therfore the mobile phones for both are different.Apart from this 3G tehchnology which is combination of both GSM and CDMA (WCDMA) is compatible with both GSM and CDMA. So a 3G mobile can serve for both GSM and CDMA radio signals.SIM (Subcriber Idendity Module) is consists of Credential for network authorization. Since Both GSM and CDMA technologies has different Authorization functions and parameters hence both SIMs are different. Note: In CDMA technology SIM is often called as RUIM (Removable User Idendity Module).CDMA uses Different Frequencies than GSM. CDMA also does not require a SIM card.Now some companies do provide SIM cards for CDMA connections also, such as Reliance communications and TATA Indicomm in India.CDMA can hold more calls per channel on their towers, while GSM drops alot of calls. That is why people are always complaining about T-Mobile and At&t dropped calls. GSM is used internationally while CDMA is mostly used in the domestic United States. CDMA carriers are Verizon, Alltel, Sprint, Cricket....while GSM carriers here in the U.S. are T-Mobile and At&t.
Boost mobile has two types of service, CDMA and IDEN. So technically its CDMA and TDMA, they do not have GSM service.
The LG Voyager mobile phone is not available in the UK. LG Voyager mobile is a CDMA phone, which does not work outside the US.