I always prefer to get SMS on my mobile, so I know how much time(which and when) my or our clients servers will stay on-bateries and when they are back on mains ?! Those fancy monitoring give you a bonus if you are on remote side of network ...
Sometimes is better not to know, so you are not afraid of ether ...
Everything works 100% if you are not so sure that you have UPS on COM1 (but it is on COM2) that you even not think to look at the back of server [

] . Conect and use Darrell's contrib. I's great
Bye,
Andrej