How to send messages from Ruggeduino to Windows Computer


I am setting up an alarm system for a fish study. This will probably include a Ruggeduino to read the sensor inputs and send a message to a Windows computer which will be right next to it. There is also a wireless router mounted on the wall a couple of feet away. My objective is to send out email alerts and automatically make phone calls with the computer (and or router) to alert people about the alarm state. I do not have to describe the alarm state, I just need to have a single message that says something like "An alarm state has occured at your fish study".

Can someone please make some suggestions as to the best way to approach this project?