X0202 4 2005-03-24 0 0000822708 ZOOM TECHNOLOGIES INC Zoom 0000938721 MANNING FRANK BLASE C/O ZOOM TELEPHONICS INC 207 SOUTH STREET BOSTON MA 02110 0 1 0 0 President/CEO Common Stock 2005-03-24 4 M 0 2700 1 A 628946 D Common Stock 2005-03-24 4 S 0 2700 2.81 D 626246 D Option (right to buy) 1 2005-03-24 4 M 0 2700 0 D 2003-06-11 2005-06-11 Common Stock 100000 91700 D The shares covered by this Form 4 are being sold pursuant to a Rule 10b5-1(c) sales plan dated February 15, 2005. The option becomes exercisable in two equal annual installments commencing on June 11, 2003. /s/Frank Manning 2005-03-25