The GSM board allows the EBlocks system to connect and communicate with a mobile phone (GSM) network. It can be used to make and receive phone calls, send and receive text messages as well as go onto the internet using GPRS for IoT style applications.
The board features audio sockets to allow the board to be connected to a standard headset and microphone. A micro SIM socket is hidden away under the GSM module and a quad band antenna is included.