In many PBX's the systems have the ability to call your cell phone when you get a message. Not an txt message but an actual call. I would really like this feature since it costs $ for every text message that is recieved. Our company just switched over to the elastix and now our operation costs have gone thru the roof because of the txt messaging costs. If someone with more smarts than me is willing to develop I am sure willing to pay (within reason). I have tried the "trixbox" solution by BobH and it does not work.