4. The computer-readable medium as claimed in claim 1 , wherein the computer readable instructions are adapted to include the aggregate alert level in said alert message.
4. The computer-readable medium as claimed in claim 1 , wherein the computer readable instructions are adapted to include the aggregate alert level in said alert message. 5. The computer-readable medium as claimed in claim 4 , wherein the computer readable instructions are further adapted to receive a response from the remote terminal which indicates one of a plurality of actions to be taken, and to execute that action.