It's an interesting idea, but I can think of a couple of problems. This is going to be of very limited use for EMRTC employees: we have no cell phone reception in the EMRTC building whatsoever, and we are not allowed to take our cell phones out in the field lab.
The letter states that cell phone numbers will be kept in a secure location (yeah, we all know ISD's track record on security) and will not be used for any purpose other than emergency notification. Numbers supposedly will never be shared with third parties. Just like email addresses never are, and campus post office boxes never are.
I'll pass, thanks.