In one word... Yes.
NCH Software has two office locations, one in Denver Colorado and the other in Canberra, Australia. Both locations are set up with the Axon Virtual PBx and the IVM Call Attendant. In some cases employees have extensions on both PBx systems. This allows us to call between the offices on IP Phones for no cost at all.
Someone in the Australian office can just pick up their phone and dial and extension allocated to me in the Denver office, the same if we were only located on different floors of the same building.
If I need to make a call to another business in Australia I can pick up my phone, press my Australian extension and dial a number in Australia and the call we be charged at local call rates instead of international call rates.
FastFox Text Expander is an application that nearly all staff have installed on their PCs and Macs. Our support and marketing teams use it for common responses, signatures, URLs, phone numbers and addresses.
FlexiStation is installed on all computers and we can track our work hours, log leave requests and generally see how our time is spent at work.
Our finance department works with Express Accounts to keep track of incoming and outgoing cash flow for the companies and our sales department uses Express Invoice to create quotes and invoices.
I personally use Debut Video Capture to record webcasts and KeyBlaze Typing Tutor typing tutor because sometimes two fingers for a keyboard just doesn't quite cut it. In one way or another we all use some of the software at home and in the office. Even though we have a testing department sometimes the best way to find a hidden problem, or the best suggestion, when it comes to software is to use it on a day to day level.