Developing app for sms forwarding, missed call notification, auto-responding

[MedOne]

I love this idea, I have tried a couple of application to do the following and nothing can do it. I wok for a large hospital and all the outgoing calls start with the same prefix, lets say 565-XXXX. During the day, I receive calls from them but would like to set something up for after hours that would recognize the prefix, send out email/text and notify me. If it could do this, I could spend less time looking at my phone when it rings.