Nursing Call Button Systems

[gates]

I am working on a school project to design an instant message system for nurses and patients. Would love to hear back from the nursing community about what the biggest problems are with the current call button systems.

1) What nursing call button system do you use now?
2) What are the most common reasons that patients ring their call bell?
3) Would it be helpful to be able to use a communication device to know immediately what patients want?
4) Would it be helpful to be able to use a communication device to send a message back to a patient?

Is there anything else you can tell me about what you like or don't like about the current call button systems used in your hospital?