Flash forward 20 years. Today I have a smart phone, corporate IM, several flavors of personal IM, the Skype client and several flavors of collaboration software including Google Apps/Docs, GoToMeeting. My wife and daughter call me or text me on the cell phone. My co-workers who are too lazy or passive aggressive to wander into my office use IM. My brother in Iraq uses Skype. I use GoToMeeting and its built-in VoIP with customers. The big black phone sits there gathering dust. I use it for conference calls a few times each month.
I'm sure that there are sales people out there who would rather give up a body part than their trusty office phone, but do any of the rest of us need them? Around here, the younger engineers frequently unplug them and stick them in a cabinet to free up desk space. Are the days of the office phone (and the office phone system) at an end?"