IP Messenger is great - there should be a post of famous 'Bert Recommendations' as that is wonderful - I can send message to the front desk, the file desk, etc and it does not allow them off the network.
I use it all the time - seeing a pt. and decide I want a b12 shot - send message and a minute or two later the door knocks and hands in the shot - pt. love it and I also use it for phone calls, etc.
