The GSM Click Board™ is an ideal solution to add GSM/GPRS communication layer to your project. This accessory board includes a Telit GL865-QUAD GSM/GPRS module that supports GSM/GPRS 850/900/1800/1900 MHz Quad-band frequency. It also incorporates a TXB0106 6-bit bidirectional voltage-level translator and a SIM CARD socket (SIM card not included) integrated on the bottom side of the board. Ideal for mobile devices, GSM Click Board™ make use of the seven MikroBUS lines (RX, TX, INT, PWM, CS, RST and AN) to communicate with the target microcontroller. The GSM Click Board™ comes with an SMA antenna connector as well as a 3.5mm quadrupole earphone/microphone jack. The board can use either 3.3V or 5V power supply, selectable via an SMD jumper. It is soldered in a 3.3V position by default. It has an LED diode that denotes the status of the power supply.
To extend the functionality of the board at no additional cost, GSM Click Board™ has additional features such as an integrated TCP/IP protocol stack (including UDP, SMTP, ICMP and FTP), serial multiplexer, remote AT commands and more.