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CDMA is Code Division Multiple Access.The word itself explains that multiple users accessing the same carrier frequency but having their unique code for each one. Here the overlapping of messages takes place.

GSM is a technique that works under TDMA,which Time Division Multiple Access.GSM

Global Service For Mobile Communication. users having the same carrier frequency with different time slots.Most of the mobile phones which is 2G having frequency of 900MHZ to 1800MHZ.for 3G it operates at2100MHZ.

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13y ago

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