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There are a few factors here. First, most companies are conservative by nature. There is always a risk that a new technology that has been embraced with significant capital expenditure only to be obsolete a short period later. Also, a downside of being an early adopter can be the use of first gen technology that is barely out of beta, and reliability is often the primary concern with equipment/services. There are also more complex concerns for a business trying to "cut the cord" than there are for individuals. It is very simple for an individual to switch to VOiP at home, using an existing broadband connection, whereas a business needs multiple line, high quality audio transmissions and near perfect reliability. This may not be possible through an existing pipeline, and may require additional expenditure to ensure sufficient bandwidth. I'm not saying it can't be done, SIP trunking is out there and it works, but it isn't as simple as it is for an individual. I do think we will see more and more businesses "cutting the cord", but we are at the early stages of seeing unified communication broadly implemented. BTW, I think Clannad is really cool too; it can be hilarious at times and the animation is fantastic!