as we know that GSM is global system for mobile communication,but earlier

What is the main difference between GSM & CDMA?

Question Posted / bibhuti bhushan

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Answer Posted / bibhuti bhushan

as we know that GSM is global system for mobile
communication,but earlier name is groupe special mobile.
multiple access method -TDMA/FDM
no. of channel -124 bands(8 user/channel)
channel capacity -200khz
operate in frequency -900mhz,1800mz,1900mhz

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