answer: What dose mean 'GSM'
Pls explain whats the meaning of 'GSM' ?
There are 3 kinds of Mobile
1) GSM (Global System for Mobile Communication) Mobiles which you can use for Mobile operators like Hutch /Airtel Frequency of operation is 900/1800 Mhz
2) CDMA (Code division multiple access Mobiles) which you can use in TATA/RELIANCE
3) WCDMA (Wide Band CDMA mobile) which you can use for 3G operators presently none in India.
