A member of the Politics Department faculty asked me about the availability of speaker-phones on campus for conference-calls in classroom situations. He recently had a favorable experience using one in class.
After consulting with John White, Flash Floyd, and Dana Camper, this may be a more-or-less adequate response:
Some rooms are already set up with speaker phones for conferences calls, including the Chavis Board Room (Commons), Tucker 112, and the Dean's conference room in Huntley Hall.
Dana Camper also has a portable speaker-phone that can be reserved, but it can only be used in a room equipped with an analog phone-line. Off the top of her head, Dana came up with this list of such rooms, in addition to ones listed above: Northen Auditorium, Commons room #345, Stackhouse Theater in the Commons, room #221 in Huntley Hall. There may be others.
Note: The above refers only to classroom capabilities and the undergrad side of campus.