Fellas we have installed a new pager system that is much more secure than the old one.
It is not as user friendly but if you need to get a hold of someone and don't wanna mess with a PM it works great.
Next to the name of anyone who is online you will see a PDA icon. If you click on it a box will pop up and you can send them a message. Check it out, try it out and report back on what you think of it.