MDM phones have been established.  While this is good news, it is critical to note that there are distinct phone numbers for different areas, as well as some phones that have not been replaced (most notably the phone in the 2.4m lounge).  Phone numbers are as listed below:

Hiltner 2.4m Control Room:  520-318-8665

McGraw-Hill Control Room:  520-318-8662

McGraw-Hill Lounge:           520-318-8664

Office of Eric Galayda:        520-318-8660

These numbers can also be found on the Observatory’s contact page.