Define: Code Division Multiple Access

CDMA stands for Code Division Multiple Access. It is a digital cellular technology used for transmitting and receiving voice and data signals over a mobile network.

CDMA uses a spread spectrum technique where each user’s signal is spread over a wide frequency band. This allows multiple users to share the same frequency band simultaneously, increasing the capacity of the network.

Yes, CDMA is still used in some parts of the world, although it has been largely replaced by other technologies such as GSM and LTE.

No, CDMA and GSM are different technologies and are not compatible with each other. CDMA phones cannot be used on GSM networks and vice versa.

CDMA networks are often considered more secure than GSM networks because of the spread spectrum technique used. However, both technologies have their own security measures in place.

CDMA phones can be unlocked, but the process is different from unlocking a GSM phone. You will need to contact your CDMA carrier to request an unlock code or seek assistance from a professional unlocking service.

In most cases, you can keep your CDMA phone number when switching carriers. You will need to contact your new carrier and provide them with the necessary information to initiate the number porting process.

There is no scientific evidence to suggest that CDMA technology poses any significant health risks. CDMA operates within the established safety guidelines set by regulatory authorities.

CDMA phones may not work in all countries as CDMA networks are not as widely available globally as GSM networks. It is recommended to check with your CDMA carrier or the destination country’s mobile network providers for compatibility and roaming options.