I Have A Phone Number?

I thought the phone on my desk was a paperweight. It is functional I discovered and set on the highest volume ringtone possible. You can see where my head hit the ceiling tile in shock. I just wish it wasn't a wrong number that called.

It's been 4 weeks since I've started my internship and I still haven't figured out how to dial out on this phone or what my co-workers email addresses and phone numbers are. Since everyone I need to talk with is in the same hallway I don't consider it a pressing issue.