X0202 4 2006-03-29 0 0001291855 SuperCom Ltd. SPCBF 0001044321 MARXE AUSTIN W & GREENHOUSE DAVID M C/O SPECIAL SITUATIONS FUNDS 527 MADISON AVENUE, SUITE 2600 NEW YORK NY 10022 0 0 1 0 Common Stock 2006-03-29 4 P 0 6500 0.75 A 6106076 I By Limited Partnerships This is a joint filing by Austin W. Marxe (Marxe) and David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Fund III QP, L.P. (QP) and Special Situations Cayman Fund, L.P. (Cayman), respectively. 3,752,074 shares of Common Stock and 1,038,042 Wts are held by QP and 1,033,702 shares of Common Stock and 282,258 Wts are held by Cayman. The interest of Marxe and Greenhouse in the shares of Common Stock owned by QP and Cayman is limited to the extent of his pecuniary interest. Austin W. Marxe 2006-03-31 David M. Greenhouse 2006-03-31