My boss wants to replace our 4 2250 operators consoles with 3905 call center phones. I have advised that this would not be ideal and there would be a loss of functionality. I know about things like DND lists, barge-in, and trunk group busy. I know some about the source and destination and each can be released separately. I think this would be a bad choice and i am needing info to make a better argument to keep the 2250s. What other things are console only? Oh we are a hospital and the operators are 24/7.