It's the latest development in the U.S. military's struggle to bring to justice the man charged with planning the Sept. 11 attacks on the United States.
Of the more than 61,000 callers so far this year, about 59% had medical questions resolved without having to travel to an urgent care clinic or hospital.
"It flies like a dream," ACC head Gen. Kenneth Wilsbach said of the new EA-37B Compass Call, a heavily adapted Gulfstream jet that will replace the EC-130.