I need an arduino sketch (lilypad and Arduino Pro Mini compatible) which is able to wake up from deep sleep mode triggered by activation of a reed switch (using an interupt). The deep sleep mode is necessary, because the hardware will be in the field using battery power. For this reason it is under consideration to just use an arduino chip with minimal components (like is shown here: [url removed, login to view]).
Next the code needs to switch on a Telit GSM modem by putting an output PIN HIGH for 2 seconds. From there existing code on the Telit modem takes over.
The Telit GSM modem to start from the Arduino sketch is a GM862. In the attached zip file you can see the proposed connections.
Testing of the code will be done from my side on a Lilypad Arduino.