The DigiNet will connect your burglar, fire or medical alarm panel to the Virtual Monitoring platform. It also has the ability to interface with other devices for home automation.
Tl150 IP Communicator for DSC Alarm Panels
The Tl150 IP Communicator (pictured below) is the ideal choice if you have a DSC alarm panel. It connects into the keybus wiring and requires very little programming. It has a built-in web server so that you can view the status of your zones plus arm and disarm your system.

The Linksys Adapter is ideal where your alarm panel has a built-in modem. It is a Plug & Play solution and requires no programming.
Use the CellAlarm-SMS Communicator if you do not have a landline or when you are concerned about your phone line being cut. Power it up, slot in a SIM card from any GSM network, enter a few settings and you're good to go.