The Johns Hopkins Gazette: January 22, 2001
January 22, 2001
VOL. 30, NO. 18


Gimme Five: Extra Digit Needed for Dialing Homewood Numbers

Johns Hopkins Gazette Online Edition

The Homewood telephone system will be changing to five-digit extension dialing on Saturday, Jan. 27. The conversion is scheduled to occur at 2 a.m. The phone system will be temporarily shut down while the conversion is taking place.

The move to five-digit dialing was required due to the university's continued growth, specifically the creation of a campus at nearby Eastern High School.

The five-digit procedure will work just as it does at JHMI. Instead of dialing a four-digit extension for internal calls, the user will have to place an additional number before the extension--6 if the telephone number begins with Homewood's 516, 1 if the number begins with 261. The number 7 will be used as the lead digit for the 997 exchange at Eastern.

For example, dial 6-7660 to call Telecommunications Services at 516-7660. When calling an off-campus 516 or 261 extension, dial the access code, 113, and then the five-digit extension.

The new dialing procedure does not impact incoming calls from outside, off-campus locations or calls normally made using a 10-digit number.

Modems and fax machines that are user-programmed with four-digit extensions need to be reprogrammed with the appropriate five-digit number. However, telephone speed-dial buttons that are programmed with four-digit numbers do not need to be changed; the system upgrade will automatically reprogram the speed-dial buttons, adding the firth digit, according to Bob Geldmacher, project manager at Telecommunications Services.

For more information, go to

and click on the telecom link or contact Geldmacher at 410-516-7560 or For more background on the change, log on to