I am very ashamed to say this, but what about outlook calendar integration? In many big companies rooms are still booked that way... also, maybe you want to make your page customizable so that you can put the company's logo. Finally, login: if I am using a company's laptop, I don't want to remember a password for each service I use.
What exactly is the difference between this one and the one you posted a few hours ago?<p><a href="https://news.ycombinator.com/item?id=8441863" rel="nofollow">https://news.ycombinator.com/item?id=8441863</a>