Arduino A000043 GSM Shield
Arduino A000043 GSM Shields connect your Arduino to the internet using the GPRS wireless network. Arduino A000043 GSM Shields plug into your Arduino board, supply a SIM card from an operator offering GPRS coverage and follow a few simple instructions to start controlling your world through the internet. You can also make/receive voice calls (you will need an external speaker and microphone circuit) and send/receive SMS messages.
Arduino Shields are boards that can be plugged on top of the Arduino
PCB, extending its capabilities. The different shields follow the same
philosophy as the original toolkit. These Arduino Shields are easy to
mount and cheap to produce.
View the entire Arduino Shield Series