My husband has the X and his corporate office just discontinued using old standard pagers for their on-call guys and switched to sending the pages through their cell phones. This posed a problem for hubby who uses the "Night" profile on his cell when he sleeps so he doesn't hear the notifications that wake him up. He only has it set on PHONE in case of emergency phone calls. He found an app that works awesome to solve the problem - Klaxon. I'm not sure exactly how it works, but he was able to set the notifications to ring ONLY from the on-call number to wake him up during the night. He's pretty excited about it and told me to post on here about it in case the Pro users who are professionals might find it useful.