I have done this before, it was time consuming. I had a system that needed to be monitored quite thoroughly.
I had the RAD call alarm notification to a PC with hyperterminal running in my office. During the day we would see the alarms, and get notification visually. I had the PC set up to grab whatever text was on the hyperterminal, and e-mail it to my pager at 7:45am. I know it is not immediate, but atleast I had a heads up on any overnight problems. occasionally the e-mail contained garbage, but I considered that a mis-dialed number to the hyperterminal. It did work.
-Gene