From the New York Times:

Aware of the potential that they will face raucous protesters at town-hall style meetings, some Democratic members of Congress have a solution to avoid the chaos: the “tele-town hall.”
The conference-call style of town halls is nothing new, nor has its use been restricted to Democrats. But for some lawmakers back in their districts this month to talk about health care, the tele-town hall is shaping up as a refreshing option to forums that make possible confrontations with protesters.