GSM module is a chip or circuit that will be used to establish communications between mobile device or computing machine and GSM system.
GSM(Global System for Mobile communications)is a standard developed by european telecommunications standard institute .it was created to describe the protocols for second generation 2G digital cellular networks used by mobile phones and is now deafult global standard for mobile communication with over 90%market share, operating over 219 countries.
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@girasenilakshi, thank you for the information. We will see how this can be useful moving ahead!
Keep posting 