Green Door

I think this door was a late addition to the building, wonder what goes on behind it?

Communication is a wonderful thing, last Tuesday I was told we'd be having a big teleconference with HQ on Thursday 15th. I'd planned a day off that day so I took yesterday off instead. This morning I got in to work to find an email saying the teleconference was today at 10am, I tried to dial in with no luck. Phoned round a few people to be told it took place yesterday & took 9 hours.