CSL: Facilities: Conference Calls
There are are several rooms that have the capability to do a conference calls within the department. The rooms are D106, D243, D301, D306, D309, D344, N306, and N314.
You will need to get a special phone from Gail Smith which you can reserve the phone by sending email to schedule at cs.duke.edu. The calendar for conference phone reservations should be checked to avoid conflicts.